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【单选题】
系列平面图例符号表示( )。<img src="20190822/1566461263173838.png" title="1566461263173838.png" alt="图片2.png"/>

普通配电箱
照明配电箱
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/8A4AB8C5B8301EB51F4374BCC47AF59A.png title=2.png alt=2.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/2C8042EEDA56A67E8EF864FAEC7511DB.png title=2-1.png alt=2-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/9D104F1956399D9DB924C536F1367961.png title=2-2.png alt=2-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/5D5FDF247A03C3B66D25BACEF8A05F0D.png title=2-3.png alt=2-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/87C9A6E0B4D0EED3B870A9530CA4C0AC.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/893555020CB1095303AAB2BDEA810F77.png title=2.png alt=2.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/2A5F23A2472754251033D4D27C4A8207.png title=2-1.png alt=2-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/3FA9FCCD8FD036608506E3F1EDE7D38A.png title=2-2.png alt=2-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/9126862B7711921D17E26200F6ADAB99.png title=2-3.png alt=2-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/584518086DB2270EDF2ABB8579A0F603.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/82370F0F8F5D323CEB4AF8B2356AE41F.png title=2.png alt=2.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/9444D2653D63BA9F8CE16714E7B1D591.png title=2-1.png alt=2-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/5DF7BAF45BC51329CB37960B457F56E7.png title=2-2.png alt=2-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/DC2C778E8DC96080D852D6BE5314DE87.png title=2-3.png alt=2-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/683BE647715286A87BFC7C396C986C55.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/34242C37DA3F3D2F6EE9F909BBEDF5ED.png title=2.png alt=2.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/EEFB780D1DB3E9EA4974593034195FBD.png title=2-1.png alt=2-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/84A46D8348CAC2962EA276EAD0295E57.png title=2-2.png alt=2-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/2BBD381DC7A0AF4EEE627190FA603027.png title=2-3.png alt=2-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/CFC8C7B97652511422B4C0A8B23F5FB8.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/5793948AC4645CCFDF41AFF74F2E4F8A.png title=2.png alt=2.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/EC5040CE30F5F60A3D9F91BC4BD093F8.png title=2-1.png alt=2-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/4A9B4786703E1FEDEB43312FAB28B4F9.png title=2-2.png alt=2-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/743905A0694F7EA960F3DF54CD30DD97.png title=2-3.png alt=2-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/E57DC7A35FE409BC2B78685498D11E30.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/E60A20C9FB1B69791C71EA13FF595AC5.png title=2.png alt=2.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/15819DA229AFE327C16929DDCB6CB3E2.png title=2-1.png alt=2-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/261D84768463BD053573833546BD1B73.png title=2-2.png alt=2-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/B2ECC36DD1F282AA865C23ACFDE9E7DB.png title=2-3.png alt=2-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/5910448DBF1A4CBC2733DF98EEDF647B.png title=2-4.png alt=2-4.png/>
【判断题】
根据所示切割体正面投影水平投影,切割圆柱体平面是正垂面。<img src=http://60.205.157.60/course/a@4A86563E6B6DA06893F711ACC27EA6B8.png title=4.png alt=4.png/>

正确
错误
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/FB125A5C638A733F2E25066D6EBE1A45.png title=2.png alt=2.png/>

<img src=https://huaweicloudobs.ahjxjy.cn/559AA49E4B715CA8E4564367541FB32B.png title=2-1.png alt=2-1.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/6B8992172FD0DA673284EADA0DEBA3B1.png title=2-2.png alt=2-2.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/8307E3C9FB06876FE108BCD178A75B33.png title=2-3.png alt=2-3.png/>
<img src=https://huaweicloudobs.ahjxjy.cn/2779B84DB2CCFC5CE6E9837B0E0AA5B5.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/E537FF2FA077964ED70326F7AB357758.png title=2.png alt=2.png/>

4
-3
-4
3