题目内容

Did Oscar prefer to havevegetable soup and the salad?

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What would Oscar like to drink?

What mistake did the waiter make?

Did Oscar have some dessert?

三相鼠笼式异步电动机直接起动电流过大，一般可达额定电流的（）倍。

A. 2-3
B. 3-4
C. 4-7
D. 10