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【单选题】
构造一个模10同步计数器,需要( )个触发器。A.
4个
B.
3个
C.
5个
D.
10个
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皮皮学刷刷变学霸
举一反三
【简答题】工件上被切削刃正在切削的表面称为 [填空(1)]A. 加工表面
【单选题】. — How did you ____ French? — I had lived in Paris with my aunt for years before I came to England.
A.
pick out
B.
pick up
C.
set up
D.
set out
【简答题】工件上由切削刃形成的那部分表面称为______。
【单选题】I ______ a great deal ______ I came to England.
A.
have learned; before
B.
have learned; since
C.
learned; since
D.
learn; after
【简答题】完形填空 My parents took me to England when I was a boy. I lived there for 3 years. When I came back, I could speak English quite well. 'I must do something 1 with my English.' I said to myself. Not long ...
【单选题】The writer ______.
A.
has never been to England
B.
came to England just now
C.
came to England three months ago
【简答题】工件上被切削刃正在切削的表面称为 [填空(1)]A. 加工表面
【单选题】The first immigrants in American history came from
A.
England and Germany.
B.
England and Ireland.
C.
England and the Netherlands.
D.
England and Spain.
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