如图所示，处在磁感应强度为B的匀强磁场中的单匝矩线圈abcd，以恒定的角速度ω绕

Look at this picture, it is Tony’s bedroom. It is small, but it is very nice. There is a desk and a bed in it. There is a computer and some books on the desk. His coat is on the bed. Where is his bag? It is on the wall. What’s that? Oh, it’s a cap! It looks like a cat.

根据短文判断句子正(T)误(F).

小题1:This is Tony’s bedroom.

小题2:There is a desk and a chair in it.

小题3:His computer is on the desk.

小题4:His coat is on the chair.

小题5:Tim has got a cat.

下列光路图中，表示光的反射现象的是

Within five years,cars will be a lot          in our country.[ ]

A.  cheap

B.  cheaper

C.  cheapest

D.  the cheapest

2.453453…的循环节是435．______．

Her parents _____ her to take some exercise but without result. 

Her parents _____ her taking some exercise but without result. 

A．suggested

B．persuaded

C．tried to persuade

D．managed to suggest