【单选题】【消耗次数：1】
计算工字形梁的抗弯强度，用公式Mx/yxWnx≤f,取yx=1.05梁的翼缘外伸肢宽厚比不小于（）。
①
<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191203/20191203173347_758.png"/>
②
<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191203/20191203172523_453.png"/>
③
<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191120/20191120171553_415.png"/>
④
<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191203/20191203173359_603.png"/>
参考答案：
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变压器负载运行时，随着负载电流的增大，其铁心损耗<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191205/20191205100008_669.png"/>和铜损耗<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191205/20191205100015_370.png"/>会（）
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甲乙两个车间工人日加工零件数的均值和标准差如下:甲车间:<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204133016_901.png"/>=70件,<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204133853_863.png"/>=5.6件,乙车间:<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204132636_598.png"/>=90件,<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191129/20191129164519_624.png"/>=6.3件,哪个车间日加工零件的离散程度较大()
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单相变压器磁路饱和时，主磁通<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191205/20191205101139_207.png"/>和励磁电流<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191205/20191205100752_202.png"/>的波形（）
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0.15<imgalt=""src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191205/20191205100458_35.png"/>
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计算工字形梁的抗弯强度，用公式<imgwidth="45"height="45"id="对象3"src="http://wljy.whut.edu.cn//uploadfiles/word/gcjg002.files/image003.png">≤f，取γx=1.05，梁的翼缘外伸肢宽厚比不小于（）。
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(10+0.1λ)15<imgwidth="35"height="33"id="对象6"src="../uploadfiles/word/gcjg002.files/image002.png">
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915<imgwidth="35"height="33"id="对象7"src="../uploadfiles/word/gcjg002.files/image002.png">
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根据等效关系的传递性，若有状态<imgwidth="24"height="34"src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj056978.png">和<imgwidth="25"height="34"src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj057002.png">等效，又有状态<imgwidth="25"height="34"src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj057032.png">和<imgwidth="25"height="34"src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj057056.png">等效，则状态<imgwidth="24"height="34"src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj057085.png">和<imgwidth="25"height="34"src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj057109.png">也等效。正确的写法是：______。
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(<imgwidth="50"height="34"src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj057281.png">),(<imgwidth="54"height="34"src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj057307.png">)-à(<imgwidth="50"height="34"src="http://wljy.whut.edu.cn:80/uploadfiles/word/szlj05.files/szlj057334.png">)
③
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③
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③
<imgwidth="86"height="26"v:shapes="_x0000_i1271"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image352.png">
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<imgwidth="86"height="26"v:shapes="_x0000_i1272"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image354.png">
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设总体<imgwidth="14"height="14"v:shapes="_x0000_i1069"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image002.png">服从两点分布：<imgwidth="259"height="20"v:shapes="_x0000_i1070"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image080.png"><imgwidth="75"height="26"v:shapes="_x0000_i1071"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image081.png">为其样本，则样本均值<imgwidth="12"height="18"v:shapes="_x0000_i1072"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image083.png">的期望<imgwidth="49"height="20"v:shapes="_x0000_i1073"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image085.png">（）
①
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②
<imgwidth="18"height="22"v:shapes="_x0000_i1075"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image089.png">
③
<imgwidth="32"height="22"v:shapes="_x0000_i1076"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image091.png">
④
<imgwidth="20"height="22"v:shapes="_x0000_i1077"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image093.png">
【单选题】
设总体<imgwidth="84"height="22"v:shapes="_x0000_i1356"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image412.png">，<imgwidth="20"height="20"v:shapes="_x0000_i1357"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image461.png">未知，<imgwidth="75"height="26"v:shapes="_x0000_i1358"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image476.png">是来自<imgwidth="12"height="14"v:shapes="_x0000_i1359"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image426.png">的样本，<imgwidth="12"height="20"v:shapes="_x0000_i1360"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image478.png">为样本均值，<imgwidth="12"height="14"v:shapes="_x0000_i1361"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image480.png">为样本标准差。是检验问题为<imgwidth="164"height="22"v:shapes="_x0000_i1362"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image482.png">则检验的统计量为（）
①
<imgwidth="135"height="35"v:shapes="_x0000_i1363"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image484.png">
②
<imgwidth="135"height="35"v:shapes="_x0000_i1364"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image486.png">
③
<imgwidth="135"height="37"v:shapes="_x0000_i1365"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image488.png">
④
<imgwidth="115"height="37"v:shapes="_x0000_i1366"src="http://wljy.whut.edu.cn:80/uploadfiles/word/xxdsb11.files/image490.png">
随机题目
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35岁，POP-QⅡ，宫颈延长，实施以下何种手术更为合适
①
经阴全子宫切除+阴道前后壁修补术
②
TVT-O
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⑤
阴道封闭术
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何种情况不符合有症状POP
①
查体发现患者用力屏气，脱垂最低点居处女膜缘上方2cm
②
自觉有肿物自阴道脱出
③
POP‐Q分 度 法 ≥ Ⅱ 度 的 状态
④
阴道脱出肿物可自行还纳
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65岁，经阴全子宫治疗POP术后2年复发，穹窿脱垂，不宜选择如下何种手术
①
经阴植入网片的盆腔重建术
②
骶棘韧带悬吊术
③
阴道封闭术
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腹腔镜下骶骨固定术
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阴道后壁桥式修补术
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实施阴道封闭术的适应症，下列哪项合理
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②
53岁，不能耐受子宫托
③
80岁，合并冠心病
④
60岁，合并压力性尿失禁
⑤
34岁合并宫颈延长
【单选题】
有关腺肌病的描述，不正确的是
①
首选腺肌瘤手术切除，并有效改善妊娠结局
②
典型的症状为痛经、经量过多、不孕
③
左炔诺孕酮宫内缓释可以用于减少经量、缓解疼痛
④
CA125升高
⑤
部分患者合并内异症
【单选题】
有关功能失调性子宫出血错误的描述是（）
①
好发于青春期和绝经过渡期
②
基础体温呈双向型
③
表现为月经周期紊乱，周期长短不一
④
可应用大量雌激素止血
⑤
子宫内膜呈增生性改变