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问题 单项选择题

输卵管结构从内向外排列分别为

A．间质部、壶腹部、峡部和伞部
B．间质部、峡部、壶腹部和伞部
C．壶腹部、峡部、间质部和伞部
D．峡部、间质部、壶腹部和伞部
E．峡部、壶腹部、间质部和伞部

答案

参考答案：B

完形填空

根据首字母或中文或音标写出单词的适当形式，每空一词

小题1:I know the railway station in my town has been in s ______ since 2010.

小题2:My parents got m______ in 1995.

小题3:The old man lives alone, but he never feels l______.

小题4:Something should be done to protect the ______ [in’vair?nm?nt] in your hometown.

小题5:In the 19th ______ (世纪), people had no computers at all.

小题6:After he ______ (检查) the computer, he told me there were no tickets.

小题7:English is most ______(广泛地) spoken in the world, but Chinese has the largest number of speakers.
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填空题

汽车发动机的汽化器，构造原理如图所示，当气缸里的活塞做吸气冲程时，空气被吸入管内，在流经管的狭窄部分时，流速______，压强______，汽油就从安装在狭窄部分的喷嘴流出，被喷成雾状，形成油气混合物，进入气缸．
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