【单选题】
在图4中,垂直于W投影面的平面(即侧垂)共( )个。<img src=http://60.205.157.60/course/a@897BB88B56D9897C8DCF0F7A3446181B.png title=单选题图4.png alt=单选题图4.png/>
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/BC6BE4E96DA1F46217B66358B0B55D94.png title=4.png alt=4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/92937B70ECBCEACE925CAD085D6DAFD6.png title=4.png alt=4.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/D0430E27D605015C752493220B8E98E4.png title=4-1.png alt=4-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/8A554B979CB6B7F140B62F660574BBE4.png title=4-2.png alt=4-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/5F1A24467347180989EAA9A31FDE2D6D.png title=4-3.png alt=4-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/F88F9E70F75F85B938ECE77D72D92CCA.png title=4-4.png alt=4-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/0AEE6D28A479E3CFC01F6B0A0AAA565E.png title=4.png alt=4.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/5F1DF376BB746AC7C50DE292DF7F3F00.png title=4-1.png alt=4-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/2120CD63C9698A84B5E593D203078EC9.png title=4-2.png alt=4-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/1BA088B65ED6FA5D7A6BE25820DD3F05.png title=4-3.png alt=4-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/4C2B331B0ADB11541DED913DC5535EDF.png title=4-4.png alt=4-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/790B064F65D979C47A8A6AFD76067CBB.png title=4.png alt=4.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/4022AAEF7ADCD3D705DD7046ACA3ACC9.png title=4-1.png alt=4-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/96F7C08A45E53F44220639512914935F.png title=4-2.png alt=4-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/6CB86E59836A64E25819E56EF725F5A5.png title=4-3.png alt=4-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/042834FF2093E245A5DCF99ED12F0EC4.png title=4-4.png alt=4-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/265846F6D50C0338CBD1E2519B1F41D3.png title=4.png alt=4.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/0B597BE8BDA0B795349190D9DBC4F166.png title=4-1.png alt=4-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/BABAC19A382691F6DEAF2E5343DB4858.png title=4-2.png alt=4-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/CAF3C45004979241B0FE9911908E527B.png title=4-3.png alt=4-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/D30017D259D1619D58BFB18400BF5522.png title=4-4.png alt=4-4.png/>
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/922F5955C6CBD4A5A99B6185A8FB8E7D.png title=4.png alt=4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/4B28F6872BEE2E7B15BC1C6B7E692AB4.png title=OXVVT)[~2IF6V3DTGJ[_B$4.png alt=OXVVT)[~2IF6V3DTGJ[_B$4.png/>( )
①
<img src=https://huaweicloudobs.ahjxjy.cn/873A87A694529FBF9E61CECC8D32AD15.png title=7KL`R7UIL_P]DW0N[8EK[KI.png alt=7KL`R7UIL_P]DW0N[8EK[KI.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/0482F42FE70814EA365592BAB9C61ACA.png title=10J51VZQN9)TUXJX]Z(G$TI.png alt=10J51VZQN9)TUXJX]Z(G$TI.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/751D83F85DEEF3EB78C92369DD75A3B0.png title=DGXWNG[9S[S7]EF4KNDYBI9.png alt=DGXWNG[9S[S7]EF4KNDYBI9.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/B586A214C1A764A9FB5C483A9A8862A5.png title=LFZAH1[{@[OC455$C14(9JR.png alt=LFZAH1[{@[OC455$C14(9JR.png/>
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/F5326515F34582EA7FEF0E3310B920B4.png title=4.png alt=4.png/>
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/3B6D830B2F2816670116BEDDF1B85A26.png title=4.png alt=4.png/>