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【单选题】
骨髓中最大的造血细胞是A.
造血干细胞
B.
造血祖细胞
C.
成纤维细胞
D.
脂肪细胞
E.
巨核细胞
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举一反三
【单选题】The writer seems to think that critics' judgment on the role of advertising is______
A.
reasonable.
B.
unfair.
C.
superficial.
D.
foolish.
【单选题】It is a (an) ______ truth that man is the only animal that has the power to speak and reason.
A.
worthy
B.
virtual
C.
universal
D.
indefinite
【单选题】Which of the following underlined parts is different in pronunciation with others?
A.
There is no reason for him to refuse me.
B.
The little girl in red is so cute.
C.
Don’t judge a person by his clothes.
D.
You can use my computer if you want.
【单选题】According to the author, shoppers are returning their purchases for all the following reasons EXCEPT that______.
A.
they are unsatisfied with the quality of the purchase
B.
they eventually find the purchase too expensive
C.
they change their mind out of uncertainty
D.
they regret making the purchase without forethought
【单选题】The discovery of dinosaur fossil sites in Bolivia is eciting because of the following reasons ECEPT______.
A.
they are found in a continent other than Asia and North Continent.
B.
the largest dinosaurs in the world are found in this discovery.
C.
there are some unknown species of dinosaurs found this time.
D.
the dinosaurs were believed to be some of the last ones on earth.
【单选题】It can be inferred from Paragraph 2 that______.
A.
the actions of environmentalists are reasonable
B.
many studies have found the bad effects of GM crops
C.
the study has aroused fierce arguments about GM crops
D.
the French bans all GM crops
【单选题】To read Tolstoy and ______ to nineteenth century Russian literature are two excellent reasons for taking Professor Morrel's Course.
A.
to introduce
B.
introduce
C.
being introduced
D.
to be introduced
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