挥发度是指在蒸气中某组分的()和它在气相平衡的液相中的()之比。 A.总压、摩尔分数

题型:单项选择题

问题:

挥发度是指在蒸气中某组分的()和它在气相平衡的液相中的()之比。

A.总压、摩尔分数

B.分压、摩尔分数

C.总压、质量分数

D.分压、质量分数

考点:合成氨生产工合成氨生产工中级合成氨生产工中级题库
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.the other

B.each other

C.one by one

D.every other one

题型:单项选择题

以下不符合肾炎性肾病的是

A.尿蛋白为非选择性

B.有高血压

C.有肾功能障碍

D.总补体降低

E.C,正常

题型:单项选择题

下列哪一条不是出自《内经》:

A.划分阳水、阴水

B.肾风

C.风水

D."平治于权衡,去菀陈堑"

E."三阴结谓之水"

题型:单项选择题

春播时有许多注意事项。比如大豆比棉花播种得早,有些作物的种子在播种前要浸种,土壤需要耕耙,使其变得松软。这些分别体现了种子萌发所需的条件有(  )

A.温度、空气、水分

B.温度、水分、空气

C.空气、水分、温度

D.空气、温度、水分

题型:单项选择题

《国务院关于深圳市城市总体规划的批复》(国函[2010]78号)提出,深圳市应合理控制城市规模,到2020年,城市常住人口控制在( )万人以内。

A.900
B.1000
C.1100
D.1300

更多题库