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【简答题】
配气机构由( )和( )组成。( )用来封闭气缸的进、排气道口 ;( ) 使气门打开和控制开启与关闭的时刻及开启与关闭的规律。
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举一反三
【单选题】The new movie to be shown this summer is a(n) ____ one; it is likely to be one of the biggest money-makers of all time.
A.
prosperous
B.
promising
C.
prominent
D.
promotional
【简答题】测定血浆蛋白结合率的常用方法有（）、（）。
【单选题】You are scheduled to load a bulk shipment of steel turnings．Which statement is TRUE ________．
A.
The primary hazard of this cargo is that it is subject to spontaneous heating and ignition
B.
The shipping papers should describe this cargo as Waste，Steel Borings
C.
After loading，you may not sail if the temperature in each hold of steel turnings exceeds 54℃
D.
This cargo may not be transported in bulk unless a special permit is issued by the competent authorities
【单选题】The new movie to be shown this summer is a(n)_____ one; it is likely to be one of the biggest money-makers of all time
A.
promising
B.
promise
C.
compromise
D.
pronounce
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