已知串联支路为<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/65b91bc067d14873a38d0c4675b53329.png"/> ， ，则其传递函数为（ ） A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/8bc361d7b437451dac5c0c42c3213311.png"/> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/7db9751653e24eba9f152b6937c8c256.png"/> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/a4b7ab7e122b40068ce6b78635486bae.png"/> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/a6b34e5a8a764d5c9b78c725d7b77ed4.png"/>

已知下列传递函数<img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/52a69b746f6d4543a289093c286ea763.png" />则是其能控规范形实现的为（）。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/5cbf894bf07b4884bd0e9a8339005832.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/063b93d5e1794cc7b2e0854e9c8d16e1.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/b02c120bde7746a68c1d324058f99bec.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/48b05a371844434b84dfa6dbae612c74.png" />

下面哪个图形是分流阀的图形符号： A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/4a427ac6ca3a451d88b23ac3bd534502.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/bef6c57a0c1c4d6bbfc50082f7edfe14.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/750259c8aa1c4efdb338873df39ffe24.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/5d511af88d8349f1bcf5e8ae6d7b1d09.png" />

下面哪个图形是单向节流阀的图形符号： A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/a6a8cd2754284a2dbbb22ed1164736bc.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/d1dca210876d4d9baa6077b41097b205.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/4a5e042e639c49b8a1c3284a5eff710c.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/7590faf536564e61a311aa76c9807fc3.png" />

麦克斯韦方程组中反映变化的电场会产生磁场的方程是： A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/38da5aa0519d43898297268ddfaaa323.PNG" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/a75feba71b8e4526abaa3cc442e36cea.PNG" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/fb2f3ac54a4d4b4f89249b1d4f7a24f7.PNG" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201902/60922d607c0f4c7f9fdedab0c625b6fd.PNG" />