B、1
C、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1528953628148db1296f66a6c400aaa4e85301fba1932image25.png"/>
D、<img src="https://s3.cn-north-1.amazonaws.com.cn/qingshuxuetang/examination/imgUplod/1528953628225f5540899b9204c68a895388a3d2e300fimage26.png"/>