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【单选题】
蝈蝈翅膀的颜色,( )部位的颜色相对比较重一点。A.
翅尖
B.
翅中
C.
翅根
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皮皮学刷刷变学霸
举一反三
【单选题】1)Who is the first scientist discovered that yeast extracts could ferment sugar to alcohol?
A.
James Watson
B.
Francis Crick
C.
Christian Anfinsen
D.
Eduard Buchner
【简答题】Passage One Questions 46 to 50 are based on the following passage. “Sugar, alcohol and tobacco,” economist Adam Smith once wrote, “are commodities which are nowhere necessaries of life, which have bec...
【单选题】Two and a haft centuries on, most countries impose some sort of tax on alcohol and tobacco. With surging obesity levels putting increasing strain on public health systems, governments around the world...
A.
They are under growing pressure to balance their national budgets.
B.
They find it ever harder to cope with sugar-induced health problems.
C.
The practice of taxing alcohol and tobacco has proved both popular and profitable.
D.
The sugar industry is overtaking alcohol and tobacco business in generating profits.
【简答题】万能铣床在上刀或换刀时,主轴应处于停转并( )状态,以避免发生事故。所以铣床设有( )环节
【单选题】Passage One "Sugar, alcohol and tobacco," economist Adam Smith once wrote, "are commodities which are nowhere necessaries of life, which have become objects of almost universal consumption, and which ...
A.
They were profitable to manufacture.
B.
They were in ever-increasing demand.
C.
They were subject to taxation almost everywhere.
D.
They were no longer considered necessities of life.
【简答题】万能铣床在主轴上刀或换刀时,为避免发生事故,主轴应处于停转并( )状态,因此,主轴电动机设有( )环节
【简答题】Sugar is added to the wine during ____to increase the alcohol level.
【单选题】They failed to convert sugar into alcohol.
A.
polite
B.
transplant
C.
mix
D.
transform
【单选题】What did Adam Smith say about sugar, alcohol and tobacco?
A.
A They were profitable to manufacture.
B.
B They were subject to taxation almost everywhere.
C.
C They were no longer considered necessities of life.
D.
D They were in ever-increasing demand.
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