最易被叶绿素吸收成为光合作用的主要能源的光是 ( )A.蓝紫光 B.红光和蓝紫光

题型:单项选择题

问题:

最易被叶绿素吸收成为光合作用的主要能源的光是 ( )

A.蓝紫光

B.红光和蓝紫光

C.红橙光

D.绿光

考点:专升本考试生态学基础专升本生态学基础
题型:单项选择题

Jamie was born in a small village in the north of England. He is nine years old. He likes playing basketball very much. When he is free, he always plays basketball with his friends in the open air. Sometimes he walks in the forest and picks some flowers by himself.

Last Friday, Jamie finished his homework after the second class in the morning. He hurried to play basketball. The playground was wet. After some time his basketball was dirty and his hands were dirty, too. It was 9: 45 and the third class began. Jamie had no time to wash his hands and ran into his classroom. Mr Black, his English teacher, told Jamie to write some new words on the blackboard. Jamie stood in front of the blackboard and started to write. Mr Black saw his right hand was dirty.

"Oh, dear!" said the teacher. "Your right hand is dirty. I'm sure it's the dirtiest in our class."

"You are wrong, Mr Black," said Jamie. Then he showed his left hand and it was dirtier.

小题1:From the first paragraph (段) we know Jamie __________.

A.was born in 2003

B.likes playing football

C.doesn't like flowers

D.lives in the south of England小题2:When did Jamie play basketball last Friday?

A.After the first class.

B.After the third class.

C.Between the first class and the second class.

D.Between the second class and the third class.小题3:Jamie's hands were dirty last Friday because           .

A.the playground was wet

B.he picked flowers in the morning

C.he has no habit of washing his hands

D.there was no water to wash his hands小题4:Mr Black asked Jamie to           .

A.wash his hands

B.write some words

C.show his right hand

D.show his left hand小题5:What's the best title (题目) for the passage?

A.Where are you from?

B.Can you play basketball?

C.You are wrong

D.I'm sorry

题型:单项选择题

路线勘测设计测量一般分为初测和()两个阶段。

题型:单项选择题

菌斑百分率在多少以下时可认为菌斑被基本控制()

A.10%

B.20%

C.30%

D.40%

E.45%

题型:单项选择题

地下热水

题型:单项选择题

下列造影,对比剂的引入方式属生理排泄的是

A.胃肠道钡餐造影
B.逆行肾盂造影
C.口服胆囊造影
D.腹膜后充气造影
E.颈内动脉造影

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