题目内容

Compare a pair of words and complete the following sentences with the right one.(curse/cursed)His wealth proved a __ to him.All his life, he’s been _ with bad luck.

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Add the prefix “over-” to the words given below. Then complete the following sentences with the words thus formed. Change the form if necessary.1. I’m really sorry for being late. I forgot to set my alarm and _.2. You look tired. Do you these days?3. The garden was with weeds (杂草).4. The team were after three days and three nights’ work.5. Don’t get yourself __ before bedtime, or you’ll find it hard to fall asleep.

把一个五进制计数器与一个六进制计数器串联可得到（）进制计数器。

A. 6
B. 5
C. 11
D. 30

猴子吃桃问题：到第12天，还剩下1个桃子，问第一天猴子摘了（）个桃子？

在同一平面上,力的作用线既不汇交于一点又不相互平行的力系称( )力系。

A. 空间汇交
B. 空间一般
C. 平面汇交
D. 平面一般