治疗上颌窦内的异物最适宜的方法是（） A.行上颌窦根治术 B.行鼻内镜监视下经下鼻道

完形填空。

When I was three years old just before my sister was born, my mom asked me what we should name the new baby. I said, "Let's call  1  Gravy (肉汁)!"     You know, we pour gravy over meat and it tastes good! My parents found my  2  interesting, but named the new baby Caroline, instead.      Having a sister  3  my life. When my sister and I played together, we  4  got into fights and got angry with each other if we did  5  wrong. It sometimes drove our parents crazy.  6  at the same time, we learned to share our things and to forgive (原谅) each other when we got  7 .      In North America, there are many kinds of families, but  8  families have a boy and a girl. Of course, some have three or more. In China, most children  9  have brothers or sisters, and they have to learn those things in other ways, which is more  10 .      When I  11  away to university, my sister  12  me she wished I still lived at  13 . She wasn't used to getting all the attention from my parents. But Chinese children get all the attention for all their life!      Some middle school  14  in China wish they had a brother or sister. If you are one of them, I  15  a good idea for you. Treat your friends and classmates as your brothers and sisters!

( )1. A. her      ( )2. A. news     ( )3. A. began     ( )4. A. never     ( )5. A. something   ( )6. A. But      ( )7. A. angry     ( )8. A. few      ( )9. A. shouldn't   ( )10. A. beautiful ( )11. A. took     ( )12. A. asked    ( )13. A. home     ( )14. A. students   ( )15. A. give    B. him     B. idea    B. saw     B. again    B. everything B. So      B. excited   B. several   B. don't    B. difficult B. put     B. answered  B. work    B. teachers  B. have C. me     C. lesson   C. changed   C. seldom   C. anything C. Or      C. hungry   C. all     C. needn't   C. careful   C. moved   C. told    C. school   C. workers  C. learn    D. them     D. story    D. enjoyed  D. often    D. nothing  D. Through  D. worried  D. most     D. wouldn't  D. friendly D. came     D. warned   D. family   D. lovers                      D. make

With fewer and fewer farmers _______ chickens, the price of eggs in the market ________.

A．rising; rises

B．raising; raises

C．rising; raises

D．raising; rises

动臂式起重机的起重量不变,减小工作幅度,起重量就可增加。

下列化学方程式正确的是（　　）

A．Mg+O₂

点燃 .

MgO

B．H₂O

通电 .

H₂↑+O₂↑

C．4Fe+3O₂

点燃 .

2Fe₂O₃

D．2KMnO₄

△ . K2MnO4+MnO2+O2↑

夏季对地面罐淋水降温的原因是：（）。

A、储油温高

B、蒸发大

C、氧化加快

D、增加空气流通，延缓燃油氧化时间