生态系统中,能量从太阳能到化学能、物质从无机物到有机物的同化过程为 ( )A.初

题型:单项选择题

问题:

生态系统中,能量从太阳能到化学能、物质从无机物到有机物的同化过程为 ( )

A.初级生产
B.次级生产
C.初级生产量
D.次级生产量

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

Mr. Hall was a rich businessman and lived in a big house beside a beautiful river.

The river usually __16__ over in winter, and one year __17__ happened very early, so that by Christmas time it was covered with really __18__ ice. People could walk across it safely.

The sight of this ice gave Mr. Hall __19__. He decided to have a big Christmas party on the ice. He would have all the furniture in his living-room _ 20 _ out onto the ice. He would have pretty colored lights _ 21 _  all around, and they would have a wonderful party. So he sent out __22__ to all his important friends, and on Christmas Eve they all began to _ 23   his house and then went onto the ice. They were all in very good _ 24   and thought that it _25_a wonderful idea of Mr. Hall to have a party on the ice.

The party   26   until late at night, and as the _ 27   guests said their merry Christmas, Mr. Hall was pleased with himself for the __28   party.

He had drunk rather  29   at the party, so he did not wake up very early __30  morning. In fact, it was   31  midday when he got up and looked out of the window at the spot where the party was held last night. __32__ he saw there made him wonder whether he was still  33 _. He closed his eyes, opened them again but there was no mistake! The ice had ­­__34   up in the early sunshine and had carried all his living-room furniture out to __35  .

小题1:

A.flows

B.flowed

C.freeze

D.froze小题2:

A.freezing

B.ice

C.snow

D.rain小题3:

A.thin

B.thick

C.deep

D.shallow小题4:

A.a wish

B.an idea

C.a hope

D.a plan小题5:

A.selling

B.carrying

C.sold

D.carried小题6:

A.lay

B.lain

C.hung

D.hanged小题7:

A.introductions

B.invitations

C.informations

D.lights小题8:

A.look for

B.come to

C.see

D.leave小题9:

A.spirit

B.strength

C.condition

D.manners小题10:

A.would be

B.had been

C.had had

D.would have小题11:

A.went to

B.kept on

C.happened

D.took place小题12:

A.first

B.last

C.most

D.important小题13:

A.big

B.new

C.interesting

D.successful小题14:

A.many

B.little

C.a lot

D.more小题15:

A.next

B.the next

C.following

D.followed小题16:

A.most

B.mostly

C.near

D.nearly小题17:

A.Where

B.What

C.That

D.Which小题18:

A.afraid

B.awake

C.asleep

D.alive小题19:

A.dried

B.come

C.frozen

D.broken小题20:

A.his house

B.the sea

C.the river

D.land

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使用虎钳拆卸工作物时,两脚要躲开工作物的()。

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带电流互感器采用分相接线的单相电子式电能表,如果电流进出线接反,则()

A.停转

B.反转

C.正常

D.烧表

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古代神话传说中的"蓬莱、方丈、瀛洲"三座仙山位于哪一个省?

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诊断急性心包炎最具有特征的体征为()

A.心界随体位改变

B.心音减弱

C.心包摩擦音

D.奇脉

E.体循环淤血征

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