【单选题】【消耗次数：1】
醋炙法中，米醋的常用量是
①
20％-30％
②
10％-15％
③
40％-50％
④
10％-20％
⑤
50％-60％
参考答案：
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相关题目
【单选题】
某医院一年内收治202例腰椎间盘后突病人，其年龄的频数分布如下，为了形象表达该资料，适合选用（ ）年龄(岁)：10～20～30～40～50～60～ 人数: 6 40 50 85 20 1
①
线图
②
条图
③
直方图
④
圆图
【单选题】
已知A、B、C三点坐标分别为（10、20、30）（20、40、60）、（30、60、90），则A、B、C三点______。
①
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
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表示一个平面
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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mso-fareast-theme-font:minor-fareast;
mso-hansi-font-family:等线;
mso-hansi-theme-font:minor-latin;
mso-font-kerning:1.0pt;}
不能表示一个平面
③
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
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表示一个特殊位置平面
④
Normal
0
7.8 磅
0
2
false
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无法判断
【单选题】
已知四点A（10、20、30）、B（30、20、10）、C（10、20、10）、D（20、20、30），则对H面的重影点为______。
①
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
A与D，D点可见
②
Normal
0
7.8 磅
0
2
false
false
false
EN-US
ZH-CN
X-NONE
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B与C，B点可见
③
Normal
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7.8 磅
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false
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mso-hansi-theme-font:minor-latin;
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A与C，A点可见
④
Normal
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7.8 磅
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2
false
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ZH-CN
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A与C，C点可见
【单选题】
设一个关系模式为R(A,B,C),对应的关系内容为R={{1,10,50},{2,10,60},{3,20,72}{4,30,60}},则δB>15(R)的运算结果中具有的元组个数为（ ）。
①
1
②
2
③
3
④
4
【单选题】
设一个关系模式为R(A,B,C)，对应的关系内容为R={{1,10,50}, {2,10,60}, {3,20,72}, {4,30,60}}，则δB15(R)的运算结果中具有的元组个数为（ ）。
①
1
②
2
③
3
④
4
【单选题】
已知三点A（10、20、15）、B（10、0、30）、C（0、10、0），则在坐标面上的点为______。
①
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A、B、C三点
②
Normal
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2
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B点
③
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B、C两点
④
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C点
【单选题】
设一个关系模式为R(A,B,C)，对应的关系内容为R={{1,10,50}, {2,10,60}, {3,20,72}, {4,30,60}}，则ПB(δC70(R))的运算结果中具有的元组个数为（ ）。
①
4
②
3
③
2
④
1
【单选题】
A点坐标为（10、20、30），B点坐标为（30、20、30）则AB距离为______。
①
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正垂线
②
Normal
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侧垂线
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正平线
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铅垂线
随机题目