电感元件具有（）的特点。 A.通交流电隔直流电 B.隔交流电通直_爱下问搜题

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问题单项选择题

电感元件具有（）的特点。

A.通交流电隔直流电

B.隔交流电通直流电

C.对交流阻碍作用小，对直流阻碍作用大

D.对交流阻碍作用大，对直流阻碍作用小

答案

参考答案：D

选择题

When I reach the school grounds there are lots of "good mornings" _____ me _____ the boys, many _____

whom have walked a long way, sometimes up _____ two hours, to get to the school. [ ]

A. to; of; from; for

B. of; from; for; to

C. from; for; to; of

D. for; from; of; to

单项选择题

机器人JOINT是（）坐标系

A.工具

B.关节

C.直角