当电阻元件两端接上正弦交流电压电源时，电阻中就有正弦交流电流通过，比较电压与电流，以下说法不正确的是（ ）

A ________ is a regular activity that is done for enjoy...

单项选择题A ________ is a regular activity that is done for enjoyment, typically during one"s leisure time.

一对一的联系可以看作（ ）的一个特殊情况，即n=1时的特例。

未知题型一对一的联系可以看作（ ）的一个特殊情况，即n=1时的特例。

We can translate "I"m interested in playing tennis and ...

未知题型We can translate "I"m interested in playing tennis and baseball." into .