空气喷射器在船上常用来()。
A.为造水机抽真空
B.为离心泵引水
C.为蒸汽冷凝器抽气
D.抽吸舱底水
参考答案:B
用括号所给词的反义词填空。
1. The school is ______ (close) from my home.
2. His clothes are ______ (new), but still very popular.
3. It’s ______(unlucky) that John will present the prizes.
4. He’s a ______ (same) man from what he was 10 years ago.
5. As ______(unusual), there were many people at the meeting.
上市公司最近3年连续亏损,在其后1个年度内未能恢复盈利的,由证券交易所决定终止其股票上市交易。( )