电路如图所示，输入电压ui为正弦波，则输出电压为（00a0 00a0 00a0 ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/d36a0f9def1a42b4b85b48d7db06cae9.png
举一反三
- On00a0July00a0600a02019,00a0which00a0Archaeological00a0Site00a0of00a0China00a0was00a0declared00a0a00a0World00a0Heritage00a0Site00a0by00a0UNESCO?00a000a000a000a0(00a0)
- 已知电路如图4所示，若输入信号ui为正弦波，则输出波形为http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/5b65bf8bacef4037b33fdb27bb9a1fe9.png
- 下列化合物有旋光性的是( )。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/42754375451947b4a2097a204914e285.png" border="0" vspace="0" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/259cc0f9369441888e4306c19039152f.png" border="0" vspace="0" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/c6798f5eb7e14df7a79f40cdd7d2f42e.png" border="0" vspace="0" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201907/4275928f484d4bad94705297fe159cf0.png" border="0" vspace="0" />
- 图8所示电路，若输入电压 ui 为系列方波如图8 所示，则输出电压uo的波形为 ( )。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201804/94dea7d0655b4096b94631bca6f6993e.png
- 个人账户金交易时间原则上为（） A: 周一早7：00至周六早4：00 B: 周一至周五每日9：00至15：30 C: 周一早7：00至周日早0：00 D: 周一早0：00至周日早0：00