A、<img width="55" height="55" id="图片 152" src="http://admintk.100xuexi.com/UpLoadImage/2017-08-17/78b6d40a-0f9b-4521-bea4-2710d03ee1db.png" />
B、<img width="56" height="59" id="图片 153" src="http://admintk.100xuexi.com/UpLoadImage/2017-08-17/80f5989d-7e94-48ed-bf12-c06fc440ddd8.png" />
C、<img width="58" height="50" id="图片 154" src="http://admintk.100xuexi.com/UpLoadImage/2017-08-17/7e5945d0-f903-4c40-a884-f9b2477c54f7.png" />
D、<img width="52" height="49" id="图片 155" src="http://admintk.100xuexi.com/UpLoadImage/2017-08-17/102c5bdd-4d82-406e-a450-74b7e3087054.png" />