问题
单项选择题
《电力工业技术管理法规》要求，汽轮机应有以下的保护装置：超速保护、（）、低润滑油压保护和低真空保护。
A.胀差大保护
B.轴向位移保护
振动大保护
D.防进水保护
答案
参考答案：B
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《电力工业技术管理法规》要求，汽轮机应有以下的保护装置：超速保护、（）、低润滑油压保护和低真空保护。
A.胀差大保护
B.轴向位移保护
振动大保护
D.防进水保护
参考答案：B
| 从下面方框中选择适当的句子补全对话,使对话内容完整通顺 。 | |
| A: Pardon me, officer. I want to go to Bums Park. 1._____ B: Yes, Miss. Burns Park is about half a mile from here. 2._____ The bus stop is on the other side of the street. A: Well, I'd like to walk .there because it is within walking distance. B: All right. We're now on Main Street. 3._____ A: I see. B: Go straight along Main Street as far as First Street. 4 ._____ Then you'll come to Lincoln Street. A: Lincoln Street? B: 5._____ Walk for a few minutes. Burns Park begins at the corner of Lincoln and Fifth. A: Thank you, officer. B: You're welcome. Good-bye. | |
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