发电厂输出有功低于规定负荷的5%,延续时间超过1小时应算故。

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问题:

发电厂输出有功低于规定负荷的5%,延续时间超过1小时应算故。

考点:电站运行机械电站运行机械题库
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下列选项中,不是我国央行用狭义货币供应量表示符号的为( )。

A.M0

B.M1

C.M2

D.准货币

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对连铸钢水温度的要求是高温、均匀()

题型:判断题

男,3岁。右腹股沟部有一小包块1年余,平时平卧后可缩小,此时平卧后包块不缩小且有触痛。查体:右侧阴囊肿胀,内可触及肿块。

此患儿诊断首先考虑

A.腹股沟直疝

B.腹股沟斜疝嵌顿

C.腹疝

D.滑动性疝嵌顿

E.右侧睾丸肿瘤

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(三)

Mr. Peter Johnson, aged twenty-three, battled for half an hour to escape from his trapped car yesterday when it landed upside down in three feet of water. Mr. Johnson took the only escape route-through the boot.

Mr. Johnson’s car had finished up in a ditch at Romney Marsin, Kent after skidding on ice and hitting a bank. "Fortunately, the water began to come in only slowly," Mr. Johnson said. "I couldn’t force the doors because they were jammed against the walls of the ditch and dared not open the windows because I knew water would come flooding in. "

Mr. Johnson, a sweet salesman of Sitting Home, Kent, first tried to attract the attention of other motorists by sounding the horn and hammering on the roof and boot. Then he began his struggle to escape.

Later he said, "It was really a half penny that saved my life. It was the only coin I had in my pocket and I used it to unscrew the back seat to get into the boot. I hammered desperately with a hammer trying to make someone hear, but no help came. "

It took ten minutes to unscrew the seat, and a further five minutes to clear the sweet samples from the boot. Then Mr. Johnson found a wrench and began to work on the boot lock. Fifteen minutes passed by. "It was the only chance I had. Finally it gave, but as soon as I moved the boot lid, the water and mud poured in. I forced the lid down into the mud and scrambled clear as the car filled up. "

His hands and arms cut and bruised, Mr. Johnson got to Beckett Farm nearby, where he was looked after by the farmer’s wife, Mrs. Lucy Bates. Huddled in a blanket, he said, "That thirty minutes seemed like hours. " Only the tips of the car wheels were visible, police said last night. The vehicle had sunk into two feet of mud at the bottom of the ditch.

What is the best title for this newspaper article()

A.The Story of Mr. Johnson, A Sweet Salesman

B.Car Boot Can Serve As The Best Escape Route

C.Driver Escapes Through Car Boot

D.The Driver Survived A Terrible Car Accident

题型:判断题

在理论计算中,冷却系统回路的总表面积和冷却孔截面积与冷却孔长度如何确定的?

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