A、<img width="26" height="21" id="图片 1801" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/e802cf14-b412-43eb-98eb-a6fdd50cc00d.png" />与<img width="31" height="22" id="图片 1805" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />异向等值
B、<img width="26" height="21" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/e802cf14-b412-43eb-98eb-a6fdd50cc00d.png" />与<img width="31" height="22" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />同向等值
C、<img width="26" height="21" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/e802cf14-b412-43eb-98eb-a6fdd50cc00d.png" />与<img width="31" height="22" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />同向,但<img width="26" height="21" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/a90fe5de-dc6f-4b7c-9a90-7d66183c0078.png" />><img width="31" height="22" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />
D、<img width="26" height="21" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/e802cf14-b412-43eb-98eb-a6fdd50cc00d.png" />与<img width="31" height="22" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />同向,但<img width="26" height="21" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/a90fe5de-dc6f-4b7c-9a90-7d66183c0078.png" /><<img width="31" height="22" src="http://admintk.100xuexi.com/UpLoadImage/2016-10-26/37d328e2-f49e-43ab-b452-969219d0b6cd.png" />
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