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【单选题】
下列关于肺泡表面活性物质的描述,错误的是( )。A.
维持肺泡的扩张状态
B.
降低肺泡表面张力
C.
稳定肺泡容积
D.
降低肺的顺应性
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举一反三
【单选题】______ that the trade between the two countries reached its highest point.
A.
During the 1980's
B.
That it was in the 1980's
C.
It was in the 1980's
D.
It was the 1980's
【单选题】The word 'shaky' (Line l, Para. 3 ) most probably means'______'.
A.
creative
B.
firm
C.
假
D.
weak
【简答题】请论述在选择中间商的标准中,需要考虑哪些经济性标准?为什么?
【单选题】'...people who die wondering, What if?' ( L3, Para. 3 ) refers to' those______ '.
A.
who think too much of the dark side of life
B.
who regret giving up their career halfway
C.
who think a lot without making a decision
D.
who are full of imagination even upon death
【单选题】The phrase' suited to'(Line l, Para. 3) means______ .
A.
acceptable for
B.
difficult for
C.
fit for
D.
bad for
【简答题】汽车的常规性维护保养分为日常维护保养、 和 。
【单选题】______ that saw the trade between the two countries reach its highest point.
A.
During the 1990's
B.
That it was in the 1990's
C.
It was in the 1990's
D.
It was the 1990's
【单选题】According to the author, the phrase 'learning to use a computer' (Line 4, Para. 3) means learning ______.
A.
a set of rules
B.
the fundamentals of computer science
C.
specific programs
D.
general principles of programming
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