下面设备能使汽轮机排汽口建立并维持真空度的是()。 A.凝汽器 B.凝结水泵 C.真

题型:单项选择题

问题:

下面设备能使汽轮机排汽口建立并维持真空度的是()。

A.凝汽器

B.凝结水泵

C.真空泵

D.低加疏水泵

考点:电厂全能值班员考试发电厂汽机专业知识发电厂汽机专业知识题库
题型:单项选择题

I was a single parent of four small children, working at a low paid job. Money was always tight, but we had a (1) over our heads, food on the table, clothes on our backs, and if not a lot, always (2) . Not knowing we were poor, my kids just thought I was (3) . I’ve always been glad about that.
It was Christmas time, and although there wasn’t (4) for a lot of gifts, we planned to celebrate with a family party. But the big (5) for the kids was the fun of Christmas (6) .
They planned weeks ahead of time, asking (7) what they wanted for Christmas. Fortunately, I had saved MYM120 for (8) to share by all five of us.
The big (9) arrived. I gave each kid a twenty-dollar bill and (10) them to look for gifts of about four dollars each. Then everyone scattered. We had two hours to shop; then we would (11) back at the "Santa’s Workshop"
Driving home, everyone was in high Christmas spirits, (12) my younger daughter, Ginger, who was unusually (13) She had only one small, flat bag with a few candies—fiftycent candies I was so angry, but I didn’t say anything (14) we got home. I called her into my bedroom and closed the door, (15) to be angry again. This is what she told me.
"I was looking (16) thinking of what to buy, and I (17) to read the little cards on the ’Giving Trees’. One was for a little girl, four years old, and all she (18) for Christmas was a doll. So I took the card off the tree and (19) the doll for her. We have so much and she doesn’t have anything. "
I never felt so (20) as I did that day.

二、完形填空

A.out

B.over

C.forward

D.around

题型:单项选择题

HbF在2周岁后的正常参考范围是()

A.<2.5%

B.<5%

C.<10%

D.<20%

E.<25%

题型:单项选择题

中风先兆常可见()。

A.头晕头痛,肢麻语涩

B.神昏肢冷,醒后如常

C.神昏吐沫,醒后如常

D.口眼歪斜,半身不遂

E.神昏肢冷,两手握固

题型:单项选择题

小儿时期不同于成人的生理特点是:()

A、脏腑娇嫩,形气未充 

B、处于不断生长发育的过程中 

C、发病容易,传变迅速 

D、生机蓬勃,发育迅速 

E、易虚易实,易寒易热

题型:单项选择题

通风及制冷时风阀状态为()。

A.新风阀全关,回风阀全开

B.新风阀全开,回风阀全关

C.新风阀全开,回风阀全开

D.新风阀全关,回风阀全关

更多题库