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【单选题】
变量名是以（）开头，后接字母、数字或下划线的字符序列，最多63个字符。变量名区分大小写A.
字母
B.
数字
C.
下划线
D.
大写字母
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【简答题】Do you know why different animals or pests (昆虫) have their special colors? Colors in them seem to be used mainly to protect themselves. Some birds like eating locusts (蝗虫), but birds cannot easily cat...
【多选题】下列属于“智、慧”二字折射出的人生智慧的是
A.
要每天不断地学习、经历、体验
B.
做事情要懂得规律、规则，不可蛮干
C.
做人要有一副好心肠
D.
做人要有宽广的胸怀
【简答题】放大电路的三种基本组态中, 组态带负载能力强, 组态频率响应好。
【简答题】阅读理解 Do you know why different animals or pests have their special colours? Colours in them seem to be used mainly to protect themselves. Some birds like eating locusts, but birds cannot easily catch ...
【简答题】Do you know why different animals or pests(害虫) have their special colors? Colors in them seem to be mainly used to 1 themselves. Some birds like eating locusts(蝗虫), but birds cannot 2 catch them. Why?...
【简答题】Do you know why different animals or pests (昆虫) have their special colors? Colors in them seem to be used mainly to protect themselves. Some birds like eating locusts (蝗虫), but birds cannot easily cat...
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