大宗交易纳入证券交易所即时行情和指数的计算，成交量在大宗交易结束后计入当日该证券成交总量。( )
参考答案：错
My sister ______ music. She sings very well. [ ]
A. is good at
B. is good for
C. does well at
D. does badly in
穿越层云层的对流云会对仪表飞行产生什么样的威胁？
