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【单选题】
生于南美洲茂密森林中的西红柿曾被称为“狼桃”。到了16世纪，英国人佛拉里公爵在旅行期间发现了它。并带种在英国皇家花园里，供皇家贵族观赏。到18世纪。法国有一位画家决心以身试“柿”，看其是否有毒。有记载说，这位勇敢的画家在吃西红柿之前穿戴整齐，吃完之后就躺在床上等着上帝的“召见”。结果。他不但没有死去，也没有任何不适。于是人们才知道西红柿原来是可以吃的。这表明A.
实践是认识发展的动力
B.
实践是认识的来源
C.
实践是检验认识的标准
D.
实践是认识的目的和归宿
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【简答题】下面哪种方法沉淀出来的蛋白质具有生物学活性?A. 重金属盐 B.盐析 C.苦味酸 B. 常温下有机溶剂 E.强酸强碱
【单选题】The phrase 'come to grips with' in the last paragraph most probably means ______.
A.
to understand completely
B.
to deal seriously with
C.
to attack violently
D.
to firmly get hold of
【单选题】The author uses the word 'euphemism' as an example to maintain that______.
A.
you can't understand the exact meaning of an unfamiliar word according to its surrounding words
B.
you can always guess the meanings of difficult words because of the context
C.
you express yourself in an indirect and less harsh way sometimes
D.
you can sometimes find clues to the meanings of unfamiliar words in their context
【简答题】Which of the following is not true? [A] Some people know little about the topic under discussion. [B] Some people do not know what the host is talking about [C] Some people do not know what the show i...
【单选题】The designer himself is not sure whether this software is appropriate ______ children under 12 years ol
A.
with
B.
in
C.
for
D.
of
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