用工业酒精勾兑散装白酒,其主要毒物是()
A、甲醇
B、乙醇
C、铅
参考答案:A
—What's that in the tree?
—There must _ some birds _ _ in it. [ ]
A. are, sitting
B. be, sit
C. be, sitting
岩基是()所具有的产出状态。
A、浅成侵入岩
B、深成侵入岩
C、火山岩体