题目内容

The bank is reported in the local newpaper _____ in broad daylight yesterday.

A. robbed D.
B. to have been robbed
C. being robbed
D. having been robbed

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All fights ______ because of the terrible weather, they had to go there by train.

A. having been canceled
B. had been canceled
C. having canceled
D. were canceled

with the development in science and technilogy man can make various flowers _____ before their time.

A. to bloomed
B. bloom
C. bloomed
D. blooming

The project _____ by the end of 2021 , will expend the city’s telephone network to cover 1000000 users.

A. accomplished
B. being accomplished
C. to be accomplised
D. having been accomplished

根据工艺等价原则,过盈配合中,若孔的公差等级≤_____,则轴的公差等级应比孔的_____1级。

A. IT7,高
B. IT7,低
C. IT8,高
D. IT8,低

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