关于角膜,错误的是A.无血管 B.无神经末梢分布 C.占外膜的前1/6 D.表面无结

题型:单项选择题

问题:

关于角膜,错误的是

A.无血管

B.无神经末梢分布

C.占外膜的前1/6

D.表面无结膜覆盖

E.具有屈光作用

考点:专升本考试医学综合专升本医学综合
题型:单项选择题

室温下,下列说法正确的是  [ ]

A.将pH=1的H2SO4和pH=3的HCl等体积混合,所得溶液pH=2

B.HF比HCN易电离,则NaF溶液的pH比同浓度NaCN溶液的pH大

C.向0.1 mol/LCH3COOH溶液中加入少量CH3COONa固体,溶液中增大

D.将1 mL pH=3的HX溶液稀释到10 mL,若溶液的pH<4,则HX为弱酸

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上颌后牙远中颈部龋按Black分类应是()。

A.Ⅰ类洞

B.Ⅱ类洞

C.Ⅲ类洞

D.Ⅳ类洞

E.Ⅴ类洞

题型:单项选择题

. I won’t make up with him ________ he apologizes.

A.unless

B.lest

C.provided

D.whereas

题型:单项选择题

When I was looking for a Christmas present for my daughter in a toy store, a nicely dressed little girl, with some money in her little hand, was looking at some beautiful dolls. When she saw a doll she liked, she would ask her father if she had enough money. He usually said yes.

At the same time, a boy, with old and small clothes, was looking at some video games. He, too, had money in his hand, but it looked no more than five dollars. Each time he picked up one of the video games and looked at his father, he shook his head.

The little girl had chosen her doll, a very beautiful one. However, she noticed the boy and his father. She saw the boy give up a video game with disappointment and walk to another corner of the store.

The little girl put her doll back to the shelf and ran over to the video game. After she talked to her father, she paid for the video game and whispered(耳语) to the shop assistant.

So the boy got the video game that he wanted for free—he was told it was a prize from the store. He smiled happily, although he felt it was so incredible. The girl saw all this happen. She smiled, too.

When I walked out of the store to my car, I heard the father ask his daughter why she had done that. I would never forget their short talk. " Daddy, didn’t Grandma want me to buy something that would make me happy"

He said, "Of course, she did. "

"Well, I just did!" With that, the little girl started skipping towards their car happily.

The story happened in a ().

A.school

B.toy store

C.cinema

D.computer room

题型:单项选择题

星运电子镇流器的功效因素高达(),远高于国家标准,高效节能。

A.0.95

B.0.9

C.0.8

D.0.5

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