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【简答题】
Belts are frequently necessary to reduce the higher rotative speeds of electric motors to the lower values required by mechanical equipment.
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参考答案:
举一反三
【单选题】My uncle lives in Shanghai. My father ______ him when he went to Shanghai on business. [     ]
A.
dropped off
B.
dropped into
C.
dropped by
D.
went past
【单选题】I went there yesterday to see my uncle .
A.
special
B.
especially
C.
specially
D.
especial
【单选题】— Where were you yesterday? — ____________ [     ]
A.
You went to see a film.
B.
I went to my uncle's farm.
C.
Because I was tired.
【单选题】_______ meet my uncle at the station, I went there by taxi instead of by bus.
A.
In order to
B.
In order that
C.
So as to
D.
So that
【单选题】I went to Qingdao and ______  my uncle. [     ]
A.
meet
B.
met
C.
meets
【简答题】.第一个观察到植物死细胞的人是英国学者___________,第一个观察到活细胞的人是荷兰学者__________。
【单选题】I went there yesterday_________to see my uncle.
A.
special
B.
especially
C.
specially
D.
Especial
【简答题】将SRAM 中存储的 CNC 参数和加工程序等存入存储卡。
【单选题】在甲烷分子中,碳原子与4个氢原子形成几个共价键
A.
1
B.
2
C.
3
D.
4
【单选题】My uncle went to the police station to ______ the lost watch.
A.
inquire
B.
claim
C.
demand
D.
require
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