【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/08346F48D7486C3D2176AAD25AD9D512.png title=30.png alt=30.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/2409E7D3301CC0E5C99413938C5000BF.png title=30-1.png alt=30-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/3FB0A2194D2A084E593697287297D7E2.png title=30-2.png alt=30-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/FC093644713AA255529273658DEBECA6.png title=30-3.png alt=30-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/B7FCDFFF8BE05B08EDD38F068DA67DED.png title=30-4.png alt=30-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/21D26008F42C6A0BD6F78853A96E4256.png title=30.png alt=30.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/774043BC1D927A95BD0D71B97987A474.png title=30-1.png alt=30-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/57C14A197A5DBAF2ABC12857D7FD8F3A.png title=30-2.png alt=30-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/C24A9A693D279B49DD9CDF6DC392EC2F.png title=30-3.png alt=30-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/9CA6CA668BF45093E5E6F736C5BD0972.png title=30-4.png alt=30-4.png/>