装置蒸汽压力下降后,对汽轮机影响说法正确的有()A、使汽轮机效率降低 B、同负荷下消

题型:多项选择题

问题:

装置蒸汽压力下降后,对汽轮机影响说法正确的有()

A、使汽轮机效率降低

B、同负荷下消耗蒸汽量减少

C、可能导致叶轮后几级叶片遭受液体冲击

D、汽压过低则汽轮机出力增加

考点:汽油加氢装置操作工考试中级汽油加氢装置操作工考试中级汽油加氢装置操作工考试题库
题型:多项选择题

阅读理解。

     The Read family come to a new big city, but Mrs Read's son, Bob, is not happy. He doesn't have

anyone to play with. "Don't worry!" says his mother. "You will soon make friends here."

     One morning, there is a knock at the door. Bob's mother, Mrs Read, opens it. There stands a woman

with brown hair. It is Mrs Miller. She comes to borrow two eggs. She wants to make cakes. Mrs Read

gives her two. In the afternoon there is another knock at the door. Mrs Read opens it and she sees a boy

standing there. "My name is Jack Miller," he says. "My mother sends you this cake and two eggs." "Well,

thank you, Jack," says Mrs Read. "Come in and meet my son Bob."

     Look! Bob and Jack are having the cake and milk.They are playing football. Now they are friends! Jack

says, "I'm glad you live next door." Bob says, "I must thank your mother for coming to borrow eggs." Jack

laughs and tells Bob, "My mother doesn't want the two eggs, but she wants to make friends with your

mother!" Bob says, "That's a funny way to make friends. It's an easy way. It can work!"

1. Bob feels sad when he is in the new city because _____. [ ]

A. his mother isn't in the city

B. he has no new friends

C. he thinks the city is too noisy

D. Jack doesn't like him

2. Mrs Miller is _____. [ ]

A. Jack's friend

B. Bob's mother

C. Mrs Read's old friend

D. Mrs Read's new neighbor

3. Mrs Mtller _____ one morning.[ ]

A. gives Mrs Read a piece of cake

B. asks Bob to play with her son

C. borrows eggs from Mrs Read

D. gives back the eggs to Mrs Read

4. In the afternoon, _____ have the cake and milk together.[ ]

A. Bob and Jack

B. Jack and his mother

C. Bob and his mother

D. Mrs Read and Mrs Miller

5. What does Mrs Miller really want to do by borrowing eggs?[ ]

A. To make friends with the Reads.

B. To make cakes with eggs.

C. To find out what Mrs Read does.

D. To see if her friend is in.

题型:多项选择题

招标人可以向他人透露已获取招标文件的潜在投标人的名称、数量以及可能影响公平竞争的有关招标投标的其他情况。()

题型:多项选择题

医疗责任事故包括下列情形,除了()

A.擅离职守,贻误诊治时机而造成过失

B.遇复杂难题不执行上级医师指导,擅自处理造成过失

C.上级医师接到下级医师报告后不及时处理造成过失

D.由于相应职称的一般水平,能力不足而造成的过失

E.抢救时延误治疗而造成过失

题型:多项选择题

关于采用电抗器降压起动,以下叙述不正确的是()。

A.电抗器降压起动一般应用于高压电动机

B.电抗器降压起动一般应用于低压小容量电动机

C.采用电抗器降压起动,电动机的电流按其端电压的比例降低

D.采用电抗器降压起动,电动机的转矩按其端电压二次方的比例降低

题型:多项选择题

程砚秋是我国著名京剧旦角表演艺术家,也是程派的创始人。

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