阅读理解。

1. Marsha's House may be a ________.

A. supermarket

B. hotel

C. restaurant

D. cinema

2. If you want to buy apples, you should go to ________.

A. Marsha's House

B. Country Life Market

C. Wawa Village

D. Next Wave Music Store

3. Arnold Swenson may be a(n) ________.

A. musician

B. athlete

C. film star

D. singer

4. If you want to get a present from Next Wave Music Store, you should ________.

A. get there before 7:00 a.m

B. be the first people to get there

C. call 543-616

D. not get there later than 50 people on Saturday

5. The four forms ________.

A. are novels

B. is news

C. are advertisements

D. essays

节流调节的缺点是在（）上消耗的能量大，泵装置的调节效率低。

A.吸人阀门

B.进口导叶

C.排出阀门

D.回流阀门