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【单选题】
对于淀粉和纤维素的叙述，正确的是( )A.
因为都是多糖，所以都具有甜味
B.
因为具有相同的分子式(C 6 H 10 O 5 ) n ，所以互为同分异构体
C.
两者都能水解生成葡萄糖
D.
因为二者都是由多个单糖分子按照一定的方式在分子间脱 水结合而成，所以二者分子里含有相同数目单糖单元(C 6 H 10 O 5 ) n
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【单选题】Britain's east midlands were once the picture of English countryside, alive with flocks, shepherds, skylarks and buttercups the stuff of fairytales. In 1941 George Marsh left school at the age of 14 t...
A.
cherishes his adolescence memories.
B.
thinks highly of the efficiency of agriculture.
C.
may not have happy memories of past time.
D.
cannot remember his adolescence days.
【单选题】Britain's east midlands were once the picture of English countryside, alive with flocks, shepherds, skylarks and buttercups—the stuff of fairytales. In 1941 George Marsh left school at the age of 14 t...
A.
cherishes his adolescence memories.
B.
thinks highly of the efficiency of agriculture.
C.
may not have happy memories of past time.
D.
cannot remember his adolescence days.
【单选题】听力原文： [24] Independent film producers were once on the fringes of the movie industry, struggling to have their works seen in small theaters and rented halls. The Sundance Festival has helped change al...
A.
They were the highlights of the film festivals.
B.
Their works were popular in small theaters and rented halls.
C.
They were once on the fringes of the movie industry.
D.
Their works were given an important exposure.
【单选题】Inconspicuous Consumption Products and services that were once the preserve of a very wealthy few—from designer handbags to fast cars, bespoke tailoring and domestic servants—are increasingly becoming...
A.
More people have more money.
B.
More people can afford servants.
C.
People are becoming less concerned with what other people buy.
【单选题】Cox-2 inhibitors were once banned from the market because they were found to increase the risk of triggering ______.
A.
colon cancer
B.
stomach problems
C.
heart disease
D.
genetic problems
【单选题】Britain's east midlands were once the picture of English countryside, alive With flocks, shepherds, skylarks and buttercups--the stuff of fairytales. In 1941 George Marsh left school at the age of 14 ...
A.
cherishes his adolescence memories.
B.
thinks highly of the efficiency of agriculture.
C.
may not have happy memories of past time.
D.
cannot remember his adolescence days.
【单选题】Britain's east midlands were once the picture of English countryside, alive with flocks, shepherds, skylarks and buttercups—the stuff of fairytales. In 1941 George Marsh left school at the age of 14 t...
A.
cherishes his adolescence memories.
B.
thinks highly of the efficiency of agriculture.
C.
may not have happy memories of past time.
D.
cannot remember his adolescence days.
【简答题】Besides Stroke Mandeville，surely the s for the disabled were once held in
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