问题
单项选择题
选择泵的配套电动机时，功率在（）kw以下的，一般选用380/220V或220/127V的三相交流电。
A、10
B、20
C、45
D、100
答案
参考答案：D
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选择泵的配套电动机时，功率在（）kw以下的，一般选用380/220V或220/127V的三相交流电。
A、10
B、20
C、45
D、100
参考答案：D
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| There are some differences between British and American English. In grammar, for example, speakers of British English say "in hospital" and "Have you a pen?" Americans say "in the hospital" and "Do you have a pen?" Pronunciation is sometimes different. For example, when a learner is used to the British pronunciation [da:ns] (dance), he may not understand the American pronunciation [dzens]. There are differences between British and American English in spelling. For example, "travelled" and "honour" are British, "traveled" and "honor" are American. However, for the most part, British and American English are the same language. | ||||||||||||
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