A、1
B、<img width="13" height="36" id="对象 238" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-23/657bad73-5daf-4782-98da-d5950a0b6388.png" />
C、2
D、<img width="13" height="36" id="对象 239" src="http://admintk.100xuexi.com/UpLoadImage/2016-08-23/d28f82ec-f025-4a92-aacb-8c2a9b220cc4.png" />
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