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【单选题】
大气层由低排列的顺序为____。A.
对流层、平流层、中间层、热层
B.
平流层、对流层、热层、中间层
C.
对流层、平流层、热层、中间层
D.
平流层、对流层、中间层、热层
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举一反三
【简答题】Describe a quality you really admire. You should say: what it is how this quality helps how difficult it is to acquire And explain why you admire this quality.
【单选题】If we are to improve the quality of this writing, we must do more than merely criticize it. We must explain why we do so. Inferior work is most effectively remedied when we know __________.
A.
why it is poor
B.
who wrote it
C.
exactly how poor it is
D.
what good writing is
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