旋涡泵的额定扬程与()关系不大。 A.转速 B.叶轮直径 C.流道截面积 D.流道和

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问题:

旋涡泵的额定扬程与()关系不大。

A.转速

B.叶轮直径

C.流道截面积

D.流道和叶片形状

考点:海船船员考试船舶辅机(三管轮)船舶辅机(三管轮)题库
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造血干细胞移植植活的间接证据为受者体内检出供者的性染色体。()

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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

题型:单项选择题

下面哪些业务与掌上营业有较强的相关性?()

A.139邮箱;

B.无线音乐;

C.手机电视;

D.来电显示;

题型:单项选择题

光缆进局尽可能使用小号馈线孔,并用()将馈线孔封堵,光缆进风洞板按馈线进孔要求,做回水弯。

题型:单项选择题

精馏塔开车时升温速度一般控制在每小时()左右。

A.10℃

B.30℃

C.60℃

D.100℃

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