下列构筑物属于生物膜法的是( )。 A．生物转盘 B．曝气池 C．化粪池 D

Canada geese are large blue and white birds .When autumn arrives ,they have to fly south where the weather is warmer .The winters are so cold in Canada that the birds will die if they stay there .

Last spring ,Bill Lishman found sixteen young Canada geese on his farm “They had lost their parents , ”Bill thought . “These young birds won’t know what to do in the autumn .

Bill had a small plane and he decided to teach the birds to follow him .All through the summer ,he went on short trips in his plane and the young geese flew after him .”

When the cold weather arrived in autumn ,Bill flew to Virginia in the United States ,600 miles south from his home in Canada .The geese follwed him all the way .Bill flew to Virginia and returned home .

This spring ,Bill was waiting for the birds to come back .They didn’t arrive ,so Bill flew to Virginia to get them .He looked for them for two weeks but he couldn’t find them .

When he arrived back home ,Bill found the geese waiting for him .Then had found the way home without him !

小题1: Canda geese have to flly south______.

A．in spring

B．before autumn

C．in the winter

D．after summer小题2:The young birds_____,so they could follow Bill to Virginia .

A．were well trained

B．went on trips in Bill’s plane

C．liked Bill

D．lost their parents小题3:Bill took the birds to virginia because ______.

A．it’s warmer there

B．it’s 600 miles away from his home

C．he wanted the birds to fly after him

D．it’s a beautiful place in the United States小题4:The birds returned to Bill’s home_______.

A．in Bill’s plane

B．by themselves

C．in the winter

D．in the autumn小题5:.From the passage we can know that Bill _____.

A．likes the birds very much

B．in an American bird-lover

C．stayed in Virginia with the birds

D．taught the birds to fly

It's all ____ down in the notebook. Which of the following is wrong? [ ]

A. set

B. taken

C. written

D. kept

以下关于批量导入说法正确的是（）。

A.导入模板必须是以制表符分隔的excel文件

B.导入时可以不用关闭导入文件

C.导入模板不可删除台头行

D.以上说法都不正确

以下各类市政公用工程的施工中，二级企业可以承揽的有（）。

A.各类城市道路；单跨45m及以下的城市桥梁

B.15万t／d及以下的供水工程；10万t／d及以上的污水处理工程

C.中压以下燃气管道、调压站；供热面积150万m²及以下热力工程和各类热力管道工程

D.中压以下燃气管道、调压站；供热面积150万m²及以上热力工程和各类热力管道工程

E.单项合同额4000万元以上的市政综合工程

为了让分手更多平静，更少伤害，当事人应该做到：（）

A、尊重情感

B、态度明朗

C、场合适宜

D、言辞坦诚