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【单选题】
while(i=3);语句中while循环执行了____空语句。

0次
1次
2次
无限次
【单选题】
The inspector ____ his fingers over the sheet of newspaper. There were some marks on the surface of the paper.

turned
set
held
ran
【单选题】
Anna was reading a piece of science fiction, completely _____ to the outside world.

having been lost
to be lost
losing
lost
【判断题】
An effective precis is based on precise and thorough reading and understanding of the article.

正确
错误
【单选题】
In the eyes of the author, one should start from ______ in wide reading.

interesting materials
books with very few pages
materials not too difficult
both A and C
【单选题】
Doris kept reading the poem ______ she could bear it in her mind.

until
unless
when
and
【判断题】
for, while,do...while都是C语言中常用的循环结构语句。

正确
错误
【判断题】
while是直到循环

正确
错误
【单选题】
23. Anna was reading a piece of science fiction, completely ____ to the outside world.

being
having lost
losing
lost
【单选题】
15. While I like the dress very much, I cant afford it. The word “while” means ______.

when
although
as long as
whereas