下列()属于易燃粉尘。
A、淀粉粉尘
B、锯榍粉尘
C、无烟煤粉尘
D、皮革屑粉尘
参考答案:A
在嵌入式SQL中,为了区分SQL语句和主语言语句,在每一个SQL语句的前面加前缀______。
(2013·辽宁,34)He may win the competition,________he is likely to get into the national team.
A.in which case
B.in that case
C.in what case
D.in whose case