判断水质是否受人畜粪便污染的最重要指标是（） A.细菌总数 B._爱下问搜题

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问题单项选择题 A1型题

判断水质是否受人畜粪便污染的最重要指标是（）

A.细菌总数

B.大肠菌群

C.粪大肠菌群

D.肠道致病菌

E.厌氧芽孢菌

答案

参考答案：C

完形填空

As Christmas is coming, there are presents to be bought, cards to be sent, rooms to be cleaned. Parents are

with difficult jobs of hiding presents from curious young children. If the gifts are large, this is sometimes a real

. On Christmas Eve, young children find the

almost unbearable（难以忍受的）. They are

between the wish to go to bed early so that Father Christmas will bring their presents quickly and the wish to

up late so that they will not

the fun. The wish for gifts usually proves stronger. But though children go to bed early, they often lie

for a long time, hoping to get a short look at Father Christmas.
　　Last Christmas, my wife and I

managed to hide a few large presents in the storeroom. I feared the moment when my son, Jimmy, would

me where that new bike had come from, but

he did not see it.
　　On Christmas Eve, it took the children hours to go to sleep. It must have been nearly

when my wife and I went quietly into their room and began

stockings. Then I pushed in the

I bought for Jimmy and left it beside the Christmas tree. We knew we would not get

sleep that night, for the children were

to get up early. At about five o'clock the next morning, we were woken by loud sounds coming from the children's room － they were shouting excitedly!

I had time to get out of bed, young Jimmy came

into the room on his new bike, and his sister, Mary,

close behind pushing her new baby carriage. Even the baby arrived, he moved

the hands and knees into the room dragging a large balloon behind him. Suddenly it burst. That woke

up completely. The day had really begun with a bang（巨响）.

C．separated　　

D．successfully

B．tell　　　　　

D．fortunately

单项选择题

当各专业确认专业间已无碰撞之后，______在有关专业的图纸(底图)上签署。

A．设计经理
B．施工队长
C．咨询工程师
D．总图负责人