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【单选题】
设 a=12 ,则表达式 a+=a-=a*=a 的值是( )A.
12
B.
1
C.
0
D.
132
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反馈参考答案：
举一反三
【单选题】The old man returned to the house to ______ all the doors were locked.
A.
insure against
B.
make sure
C.
assure of
D.
ensure of
【简答题】串行传输和并行传输各有什么优缺点?
【简答题】具有五个构件的机构有______绝对瞬心。 A.1 ; B.5; C. 4; D.3
【单选题】The old man returned to the house to ________ all the doors were locked.
A.
make sure
B.
insure against
C.
checked in
D.
arose from
【简答题】The man returned to work after he got( )his illness.
【简答题】A. The woman has not overcome her grief. B. The woman has returned to normal. C. The man’s mother died. D. The woman is comforting the man.
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