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【单选题】
正常骨髓中,红系占有核细胞为A.
10%左右
B.
20%左右
C.
30%左右
D.
40%左右
E.
50%左右
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【单选题】Which group chosen to assist the House in its judicial duties?
A.
Life peers
B.
Law Lords
C.
Lords Spiritual
D.
hereditany
【简答题】What the people really ignore in the debate is that [ A] the effects of the modern pollutants on the living organisms. [ B ] the present situation is remarkedly different from the past. [ C ] the stre...
【简答题】Our earth has been threatened by all kinds of pollutions. Acid rain is a kind of air pollution which is hanging over our heads and coming down from many different 【S1】______ ways such as rain and snow...
【单选题】In the Gulf of Mexico the animals' presence close to shore means their usual habitat is badly polluted, and the crowding could ________ mass die-offs as fish run out of oxygen.
A.
result from
B.
benefit from
C.
devote to
D.
result in
【单选题】Specialisation and the effort to increase yields have resulted in______.
A.
localised pollution
B.
the shrinking of farmland
C.
competition from overseas
D.
the decrease of biodiversity
【单选题】____________ will we give in to the difficulties. Which of the answers can’t be chosen?
A.
On no condition
B.
At no time
C.
In no time
D.
Never
【简答题】Private Cars in China Key Words: private cars, living standard, discouraged, limitation, air pollution, traffic energy, develop public transportation, raise the price of gasoline
【单选题】What two problems can man solve by burning garbage?
A.
The shortage of energy and air pollution.
B.
The shortage of energy and the land to hold garbage.
C.
Air pollution and the shortage of fossil fuel.
D.
Air pollution and the shortage of land to hold garbage.
【单选题】选择填空。 — ______ group is your favorite? — I think H. O. T. ______. [ ]
A.
Which, /
B.
Which, does
C.
What, is
【单选题】The medical center couldn't ______ which group the flu virus belonged to owing to the lack of more blood samples.
A.
scan
B.
discern
C.
testify
D.
disclose
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