I am glad you show my letters ______ in the family, for I like them all to know what I am doing, and I can’’t write to every one.
A. off
B. round
C. up
D. out
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The central provinces have floods in some years, and_______.
A. drought in others
B. droughts are others
C. while other droughts
D. others in drought
Investigators agreed that passengers on the airliner______ at the very moment of the crash.
A. should have died
B. must be dying
C. must have died
D. ought to die
What do we learn from the conversation
A. John is not sick.
B. John is feeling better.
C. Jack hasn’’t been sick.
D. Jack has not got better.
有以下程序: void f(int v,int w) int t; t=v;v=w;w=t; main() int x=1,y=3,z=2 if(x>y) f(x,y); else if(y>z) f(y,z); else f (x,z); printf("%d,%d,%d\\n",x,y,z); 执行后的输出结果是 。