A professor and a writer ___ present at the meeting.

工卡原版本号R001001，经过一次临时改版后，工卡现版本号应为（）。

工卡原版本号R001001，经过一次整体改版后，工卡现版本号应为（）。

I can’t get my car _____ on cold mornings, so I have to try _____ the radiator with some hot water.

A320交流电电源系统功率说明错误的是

Dogs bark at strangers because they can _______ the smell of their masters.

Dogs bark at strangers because they can _______ the smell of their masters.

In our society, aspirin is a very popular _______ for cold.

In our society, aspirin is a very popular _______ for cold.

The changing color of the leaves on the tree is a ________ that it will soon be fall.

The changing color of the leaves on the tree is a ________ that it will soon be fall.