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【单选题】
以下关于 Python 循环结构的描述中,错误的是 ______ 。A.
while 循环使用 break 保留字能够跳出所在层循环体
B.
while 循环可以使用保留字 break 和 continue
C.
while 循环也叫遍历循环，用来遍历序列类型中元素，默认提取每个元素并执行一次循环体
D.
while 循环使用 pass 语句，则什么事也不做，只是空的占位语句
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【单选题】All of the following statements are the advantages of inflatables EXCEPT that______.
A.
they are much lighter than traditional modules
B.
they are less expensive to launch
C.
they can expand to larger room
D.
they can fit current rockets
【简答题】ADC0809的转换时钟一般为 Hz,可采用单片机的 信号,再经过 的方法获得。
【单选题】According to Fields, all of the following are the advantages of his technique EXCEPT that ______.
A.
it is environmentally friendly
B.
it is safe to the people's health
C.
it is more effective than pesticides against some insects
D.
it is cheaper than pesticides
【简答题】All of the following are advantages of expert programs EXCEPT that [A] they have an indefinite life span. [B] they cost little to reproduce. [C] many copies can be made available. [D] they are self-an...
【单选题】The advantages of hotels are all of the following EXCEPT that they______.
A.
are convenient
B.
are easy to book
C.
provide standard service
D.
offer greater options
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