我省滇池水域中氮和磷的含量过高,造成水葫芦疯长。这里的“氮”、“磷”是指[ ]

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问题:

我省滇池水域中氮和磷的含量过高,造成水葫芦疯长。这里的“氮”、“磷”是指[ ]

A.元素

B.原子

C.离子

D.分子

考点:元素的定义
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《博物馆建筑设计规范》规定,()的外门应向外开启

A.藏品库房

B.陈列室

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2000年、2005年、2006年发达国家、发展中国家和世界总体的国际储备(不包括黄金)和黄金储备变化情况,如图所示:

部分国家国际储备和黄金储备的变化情况如下表所示:

与2005年相比,下面关于2006年储备量的描述错误的是()。

A.中国黄金储备量占世界总体的比重略有上升

B.美国黄金储备量占世界总体的比重略有下降

C.中国黄金储备量没有变化,国际储备量上升

D.美国黄金储备量略有下降,国际储备量略有上升

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For some time I’ve had a church member provide me with a rose to pin on my suit every Sunday. __1__ I always got a flower on Sunday morning, I really did not__2__ much of it. It was a nice gesture that became__3__. One Sunday, however, what I considered__4__ became very special.

As I was leaving the Sunday service, a little boy__5__ and said, “Sir, what are you going to do with your flower?” “Do you__6__ this?” I said, pointing to the rose pinned to my coat.

He said, “Yes sir. I would like it if you are__7__ going to throw it away.” The little boy said, “Sir, I’m going to give it to my granny. My mother and father got_8__ last year. I was living with my mother, but I could not__9__, so she sent me to live with my grandmother. She has been so good to me that I want to give that pretty flower to her for__10__ me.”

When the little boy finished I could hardly__11__. My eyes filled with tears and I knew I had been touched in the__12__ of my soul. I reached up and__13__ my flower. With the flower in my hand, I looked at the boy and said, “Son, that is the__14__ thing I have ever heard, but you can’t have this flower because it’s not__15__. If you’ll look in front of the platform, you’ll see a big__16__ of flowers. Different families buy them for the__17__ each week. Please take those flowers to your granny because she__18__ the very best.”

If I hadn’t been__19__ enough already, he made one last statement and I will always treasure it. He said, “What a__20__ day! I asked for one flower but got a beautiful bouquet.”

1. A. Because         B. Although    C. If                     D. Once

2. A. speak                   B. think          C. remind              D. care

3. A. rule                     B. practice             C. custom              D. routine

4. A. valuable        B. useless              C. ordinary            D. normal

5. A. approached        B. stopped             C. interrupted D. followed

6. A. notice                  B. see             C. like            D. mean

7. A. always          B. just            C. ever           D. already

8. A. divorced        B. lost            C. disturbed    D. troubled

9. A. stand                    B. understand  C. stay           D. help

10. A. comforting  B. adopting            C. supporting  D. loving

11. A. move          B. speak         C. breathe              D. refuse

12. A. depths         B. back          C. bottom              D. corner

13. A. uncovered           B. unloaded    C. unpinned  D. unwrapped

14. A. sweetest              B. nicest         C. saddest              D. strangest

15. A. real                    B. fresh          C. expensive   D. enough

16. A. pile                    B. bouquest    C. collection   D. chain

17. A. relatives             B. old            C. poor          D. church

18. A. deserves             B. proves        C. sounds              D. matches

19. A. challenged          B. surprised    C. touched             D. taught

20. A. sunny          B. special              C. lucky         D. wonderful

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免疫球蛋白根据其重链抗原性不同而分为()、()、()、()、()五类。

题型:选择题

称取一包袋装水泥,其质量是49.8kg,已知一条包装袋的质量是0.2kg,其包装质量符合标准要求。

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