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【单选题】
*当气温垂直递减率γ<0时,表明________。A.
气温随高度的增加而下降
B.
气温随高度的增加而上升
C.
气温随高度的增加不变
D.
该层对流强
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举一反三
【单选题】In the presence of an open flame or hot surfaces, chlorinated fluorocarbon refrigerants decomposes and from _______
A.
petroleum crystals
B.
phosgene gas
C.
water vapor
D.
carbon monoxide
【简答题】If you order before 15th April, (it's not necessary) for you to pay until August.If you order before 15th April, you ___________________________________
【简答题】John went up to his room with a bowl of ice cream to do his homework and then chat with his friends on Facebook. He had just finished his ice cream when he felt a pain in his mouth. “Oh, no, the tooth...
【简答题】The book is optional. My professor said we could read it if we needed extra credit. But we ______ read it if we don't want to. (can't/ don't have to/mustn't)
【简答题】如何加强平时的疫病预防工作?
【单选题】In the presence of an open flame or hot surfaces, chlorinated flourocarbon refrigerants decomposes and form .
A.
petroleum crystals
B.
phosgene gas
C.
water vapor
D.
carbon monoxide
【简答题】如何加强平时的疫病预防工作?
【单选题】下述程序的输出结果是（ ）。 #define N 20 void fun(int a[]，int n，int m) { int i，j； for(i=m；i>n；i--)a[i+1]=a[i]； } main（ ） { int i，a[N]={1，2，3，4，5，6，7，8，9，10}； fun(a，2，9)； for(i=0；i<5；i++)printf('％d'，a[i])； }
A.
10234
B.
12344
C.
12334
D.
12234
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