A、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1488176484109bc3e1b7c0b984e86aeeeae8456d64965image2.png"/>
B、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1488176484143f980bc7970fe425e8a8ee454c1893733image3.png"/>
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1488176484181d5039eff066a47f3b1a6788083d9222eimage4.png"/>
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1488176484218b61f70924bf1480bac31756b4826ec24image5.png"/>