不定项选择

如果Number是整型变量，MyString="One potato"，那么下列语句执行之后，Number=3：
If Number is an integer variable and MyString= "One potato", then Number = 3 after the following statement is executed.
Number = Length_Of(MyString)

A．错误
B．正确

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单项选择题

Weilin Chen is sitting in a class that precedes lunch. His stomach begins to rumble and grumble. Instead of thinking about the day's lecture, Chen begins to think about lunch and his choice of places to eat. He even begins to narrow down the selection of foods that he might want for lunch. Chen is focusing on biological needs that are at present unfulfilled and have produced what might be thought of as an unpleasant state of arousal. Which of the following theories best describes Chen's experience? （）

头尖尖，脚钩钩，两个肚脐扭了扭。（打一生活物）

答案：谜底：剪刀
解析：汉字“剪”的象形意思就是“刀前还有一把刀”，古人将剪刀又称“龙刀”，可见其在生活中的重要性。