问题

Sam ________ some knowledge of the computer just by watching others working on it.

A:brought up
B:looked up
C:picked up
D:set up

正确答案是：

同类题型

e members of ateam perform better, the trainer first of all has to knowtheir _________ and weaknesses

The people were afraid, because the tigerhad escaped _________ the zoo.

se_____,theywenttothepolice.

The Huang River is the second __________ river in our country.

I don’t eat ice-cream. I don’t want ______.