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【判断题】
电动机electromotor：优点merit：结构紧凑，操作简单，容易自动控制，安装维护费用低。Compact structure, simple operation, easy automatic control, low installation and maintenance costs.缺点shortcoming：转速低，需要齿轮增速器；调速困难（可变频实现）；启停冲击电网；对供电要求高，需双回路供电，投资大。Low speed, need gear speeders; Difficulty in speed control (variable frequency realization); Power grid impact; High demand for power supply, double circuit power supply, large investment.A.
正确
B.
错误
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【单选题】I don’t like ____ bills but when I do get them I like ____ them promptly. (1992-60)
A.
to get, paying
B.
getting, to pay
C.
to get, to pay
D.
getting, paying
【单选题】I don’t like ____ bills but when I do get them I like ____ them promptly.
A.
to get, paying
B.
getting, to pay
C.
to get, to pay
D.
getting, paying
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