当验算建筑桩基抗震承载力时，为（）。 A.桩顶最大竖向力 B.基桩或复合基桩的最大竖

普萘洛尔可用于治疗（）

A.心房纤颤或扑动

B.窦性心动过速

C.阵发性室上性心动过速

D.运动或情绪变动所引发的室性心律失常

E.室性早搏

I played a racquetball game against my cousin Ed last week. It was one of the most __1__ and tiring games I’ve ever had. When Ed first phoned and ___2___ we play, I laughed quietly, figuring on an ___3___ victory. After all, Ed’s idea of ___4___ has always been nothing more ___5___ than lifting a fork to his mouth. ___6___ I can remember, Ed’s been the least physically fit member in the family, and ___7___ proud of himself. His big stomach has always ballooned out between his T-shirt and trousers. Although the family often ___8___ about that, Ed refused to buy a ___9___ T-shirt or to lose weight. So when Ed ___10___ for our game not only with the bottom of his shirt gathered inside his trousers but also with a stomach you could hardly ___11___, I was so surprised that I was ___12___. My cousin must have made an effort to get himself into shape. ___13___, at the point in our game when I’d have predicted(预计) the score to be about 9 to 1 in my favor, it was ___14___ 7 to 9 — and Ed was ___15___. The sudden realization was painful. We ___16___ to play like two mad men. When the score was 16 up, I was having serious ___17___ about staying alive until 21 years old, let alone ___18___ that many points. When the game finally ended, both of us were lying flat on our backs, too tired to ___19___. In a way, I think we both won: I the game, but cousin Ed my ___20___.

1. A. encouraging   B. hopeless     C. surprising   D. regular

2. A. declared B. mentioned  C. persuaded   D. suggested

3. A. unforgettable B. unexpected C. easy    D. early

4. A. exercise  B. preparation C. joy     D. fitness

5. A. time-saving    B. comfortable       C. suitable      D. effort-making

6. A. As soon as     B. As long as  C. When  D. Since

7. A. strangely       B. personally  C. reasonably  D. eagerly

8. A. cared      B. forgot C. quarreled    D. joked

9. A. clean      B. larger  C. straight      D. darker

10. A. set out  B. got ready    C. arrived       D. returned

11. A. notice   B. admire       C. believe       D. measure

12. A. nervous       B. curious       C. careless      D. speechless

13. A. After all       B. As a result  C. Above all   D. At last

14. A. mistakenly   B. then    C. instead       D. naturally

15. A. leading B. coming      C. waiting      D. counting

16. A. pretended     B. stopped      C. continued   D. decided

17. A. thoughts      B. doubts C. situations    D. problems

18. A. scoring B. completing C. receiving    D. keeping

19. A. play     B. start    C. sleep   D. move

20. A. friendship    B. respect       C. support      D. favor

该商品流通企业由独立经营转向连锁经营，其实质表现为( )。

A．专业化经营与分散化开店相结合

B．分散采购与集中销售相结合

C．集中采购与分散销售相结合

D．专业化经营与集中开店相结合

在一定温度下，把2. 0体积的N₂和6. 0体积的H₂通入一个带活塞的体积可变的容器中，活塞的一端与大气相通，容器中发生如下反应：N₂＋3H₂2NH₃。已知平衡时NH₃的浓度是c mol·L^－1，现按下列四种配比作为起始物质，分别充入上述容器，并保持温度不变，则达到平衡后，NH₃的浓度不为c mol·L^－1的是

A．1.0体积的N₂和3.0体积的H₂

B．2.0体积的N₂、6.0体积的H₂和4.0体积的NH₃

C．2.0体积的NH₃

D．4.0体积的NH₃和1.0体积的H₂