问题
单项选择题
就地液面计投用时,(),有利于在液面计中赶走气泡。
A、先开上引出阀,再开下引出阀
B、先开下引出阀,再开上引出阀
C、只开下引出阀
D、只开上引出阀
答案
参考答案:B
就地液面计投用时,(),有利于在液面计中赶走气泡。
A、先开上引出阀,再开下引出阀
B、先开下引出阀,再开上引出阀
C、只开下引出阀
D、只开上引出阀
参考答案:B
从下面所给出的词组中选择恰当的词组,用正确的形式填空,其中有2个多余的词组。
小题2:The rise in crime ________________________ the increase in unemployment. 小题3:A lot of posters __________along the street to promote the new film when it comes out. 小题4:The workers _______________new ways in the early reform to improve the quality of the product. 小题5:He doesn’t like thinking. He ____________________ being given the answers by teachers. 小题6:The old carpenter spends most of his life _____________wood. 小题7:The repairing work of the teaching building _________________be finished in three months. 小题8:Happiness is the theme of life, although it can be hard ___________________________. 小题9:The man ___________________becoming an astronaut and flying into space when he was young. 小题10:When the film star appeared, all the people ____________________her. |