离心泵启动后，出口流量和压力低的原因可能是（）。A、电机反转 B、泵入口过滤网堵 C

发布时间：2017-05-06 21:37 │ 来源：www.tikuol.com

题型：多项选择题

问题：

离心泵启动后，出口流量和压力低的原因可能是（）。

A、电机反转

B、泵入口过滤网堵

C、叶轮腐蚀严重或装反

D、泵出口管线不通畅

考点：环氧乙烷乙二醇装置操作工环氧乙烷乙二醇装置操作工(高级)环氧乙烷

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完形填空。

     Eric was terribly ill. He couldn't move and had to spend all day in  1 . Because his friends
were not allowed to go near him, he felt quite 2 . Every day he just looked out of the 3 , doing nothing at all.
As time passed, Eric became more and more hopeless.
     One day, however, he saw something very  4   in the window. A panda was eating sandwiches there. Eric
was very surprised. Before he could 5   what had happened, he saw a monkey playing the violin. After a while,
he saw more and more  6 characters outside the window. This time he began to 7 a lot and could hardly stop.
     No one would stop laughing when they saw a pig playing a drum, or a dog  8 a pair of glasses and acting
like a teacher. Eric didn't tell anyone about this  9 he thought nobody would believe this. Anyway, those
strange characters brought happiness back  10 his heart. Soon he got well and was able to go back to  11
again.
     When class was over. Eric told his  12 about all the strange things he had seen. While he was talking,
he saw something coming out of Tom's 13 . He wanted very much to know what it was, so he asked Tom
  14 . Finally Tom had to 15 him what was in the bag. There, inside, were all the fancy-dress (假面) toys
that Tom had used to cheer him up!
     And from that day on, Eric always did his best to make sure that no one was sad or lonely.

( )1. A. school
( )2. A. happy
( )3. A. window
( )4. A. delicious
( )5. A. find out
( )6. A. quiet
( )7. A. cry
( )8. A. making
( )9. A. because
( )10. A. for
( )11. A. work
( )12. A. parents
( )13. A. eyes
( )14. A. again and again
( )15. A. teach

B. bed
B. tired
B. book
B. warm
B. pick up
B. brave
B. laugh
B. selling
B. but
B. with
B. school
B. brothers
B. shoes
B. as usual
B. show

C. church
C. sad
C. door
C. useful
C. take away
C. funny
C. run
C. inventing
C. so
C. into
C. town
C. sisters
C. jacket
C. day and night
C. lend

D. class
D. excited
D. wall
D. strange
D. get back
D. dangerous
D. sing
D. wearing
D or
D. by
D. hospital
D. classmates
D. schoolbag
D. in time
D. sell

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患者女性，53岁。4个月前无明显诱因出现胸闷、气促、轻咳，咳少许白色黏痰，无畏寒、发热，盗汗等，考虑为右侧结核性胸膜炎，给予抗感染、抗结核治疗40天后病情缓解出院。近1周无明显诱因病情加重，到本院就诊。查体：见双下肢无水肿。左下肺可闻及细湿啰音，右侧胸腔积液征阳性。心率98次／分，腹软，肝于剑突下5cm、肋下2cm可触及，表面光滑，质软，轻压痛。第1次胸腔积液检查：暗红、混浊、李凡他试验（+）、比重1．020、LD143U／L、蛋白质21．7g／L、RBC（+）、WBC（O～2）／HP、抗酸杆菌（-）、恶性细胞（-）。给予抗结核治疗10天，无明显疗效，但试用利尿剂后患者病情可缓解。再次胸穿发现胸腔积液呈透明、鲜红色，李凡他试验（-），比重1．008，蛋白质25．4g／L，LD222U／L，RBC（++），WBC（1～2）／HP。

下列叙述正确的是（）.

A.该患者积液为渗出液

B.该患者积液为漏出液

C.该患者第二次胸穿，积液为透明、鲜红色，可能是出血所致

D.该患者第二次胸穿，积液为透明、鲜红色，可能是服用利福平所致

E.患者应继续抗结核治疗

F.患者应继续抗感染治疗

G.患者应继续利尿治疗

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如何对大众传播媒介进行选择？

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油绳润滑是利用（）原理。

A、吸油

B、顺流

C、毛细管

D、引导

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对永久性边坡，现浇挡板和拱板厚度不宜小于（）

A、200mm

B、350mm

C、300mm

D、250mm

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