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【简答题】
以下,执行结果为( ) a=1; do {a=a*a;} while (!a);(2.0分) A. 循环体只执行一次 B. 循环体执行二次 C. 是无限循环 D. 循环条件不合法
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反馈参考答案：
举一反三
【简答题】轴测图可分为 和 两种。
【简答题】属于我国原产和特产,有“菜中之王”美誉的叶类蔬菜是( )。
【简答题】小麦条锈病的发生和流行主要取决于( )、( )以及( )。
【单选题】We went through a period communications were very difficu1t in the rura1 areas. （ ）
A.
which
B.
whose
C.
in which
D.
with which
【单选题】As well as being intangible, what is the problem with emotions ?
A.
They are difficult.
B.
They are compounded.
C.
They are difficult to qualify.
D.
They do not operate in isolation.
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