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【单选题】
以下程序中,while循环的循环次数是()

1
10
6
死循环,不能确定次数
【单选题】
在“while(!a)”中,其中“!a”与表达式()等价。

a==0
a==1
a!=1
a!=0
【单选题】
The boy has admitted to ____ the window while playing football yesterday.

breaking
having been broken
break
be breaking
【单选题】
I fell and hurt myself while I ________ basketball yesterday.

was playing
am playing
play
played
【单选题】
The boy has admitted to _____the window while playing football yesterday.

breaking
having been broken
break
be breaking
【单选题】
-Weve worked for a long time, what about stopping a while to have a rest?-_____________________.

I like it.
You are wonderful.
Thats a good idea.
ok
【单选题】
10. Please waitfor ______ while.Ill be back in _______ minute.

the
a
the
a
【单选题】
All the while he was terrified by the fear _______ he had cancer of the stomach.

which
that
what
such
【判断题】
A: Would you wait for me for a while? B: Thats all right.

正确
错误
【单选题】
He didnt seem to mind_____the music while he was studying.

them listening
them to listen to
when she returned
that did she return