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【判断题】
烯烃的分解反应规律和烷烃不同,烯烃反应速度比较烷烃低得多。A.
正确
B.
错误
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举一反三
【单选题】According to paragraph 3, the heat flow necessary for the production of geothermal energy
A.
is like solar heat on the Earth's suce
B.
happens near tectonic plate boundaries
C.
must always be artificially increased
D.
may be impractical because of its location Paragraph 3 is marked with an arrow [→].
【单选题】The word 'unwarranted'(line 3, para. 2)most probably means '______'.
A.
undeserved
B.
unnecessary
C.
extreme
D.
unfair
【简答题】It’s necessary to 3) _______________.
【单选题】The last sentence in Paragraph 3, 'this is certainly not a necessary association', is quite possibly an opinion by ______ .
A.
a man of the classic mode
B.
a man of the romantic mode
C.
a woman of the romantic mode
D.
the author a light digression
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: The vitamins necessary for a healthy body are normally supplied by a good mixed diet (饮食) , including a variety of fruits and green veg...
A.
normally contains enough vitamins
B.
still needs special provision of vitamins
C.
is suitable for losing weight
D.
is composed of fruits and vegetables
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: The vitamins necessary for a healthy body are normally supplied by a good mixed diet (饮食) , including a variety of fruits and green veg...
A.
normally contains enough vitamins
B.
still needs special provision of vitamins
C.
is suitable for losing weight
D.
is composed of fruits and vegetables
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