A、<img width="33" height="41" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-08-09/bed6b6be-0e7e-40a1-8f57-6debb052b655.png">
B、<img width="21" height="41" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-08-09/47cf7df4-7e5a-4f48-a98b-827b88c4be5d.png">
C、<img width="33" height="41" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-08-09/602d656b-983d-4866-bdad-b6de6885eb11.png">
D、<img width="21" height="41" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-08-09/525094b1-711c-41df-b453-9b3453e5768a.png">
A、<img width="33" height="41" id="Picture 346" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-09-01/9e47a859-b9d6-4a9e-b996-f0e145662231.png">
B、<img width="21" height="41" id="Picture 347" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-09-01/765495f3-6c7d-4b49-83fb-506d06c89f53.png">
C、<img width="33" height="41" id="Picture 348" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-09-01/140dbfd4-ec02-4871-9226-dc94a997db89.png">
D、<img width="21" height="41" id="Picture 349" src="https://static.tiw.cn//s/tiw/p3/UpLoadImage/2016-09-01/4e71456c-14f3-4bcb-bbee-979346f7a70d.png">
查看答案
，
．所以
．
