King's College Summer School is an annual(年度的) training program for high school students at all levels who want to improve their English. Courses are given by the teachers of King's College and other colleges in New York. Trips to museums and culture centers are also organized. This year's summer school will be from July 25 to August 15. More information is as follows:

小题1:The summer training program includes all of the following except_______.

A．doing a part-time job.

B．taking courses.

C．having sports.

D．travelling.小题2: If you want to live at a relative's home in New York, you will have to pay the school______.

A．$200.

B．$400.

C．$500.

D．$900.小题3:What correct information can you get from the passage?

A．The program will last two months.

B．You can e-mail or ring up the school.

C．You should write to Thompson only in English.

D．Students in China can send applications only on July 14.

与截止阀相比，闸阀( )。

A．宜用于需要调节流量大小的场合
B．宜用于启闭频繁的管路
C．适用于蒸汽管路
D．适用于大口径管路