下列分别盛有不同物质的容器中，所盛物质属于： 混合物的是________，纯净物

阅读理解。

    Prana was a beautiful dog, whose name means "breath of life". Although he died several years ago, I can

still remember the days we spent together and what he has taught me about love.

    I have two apple trees in the garden. Prana loved apples. When he went outside, he'd catch an apple and

take it into the house to eat later. The apples had been on the ground and were often dirty so I wasn't always

happy that Prana had brought them into the house.

    It was an autumn day in America, but it was very cold. A big snow fell and we had not done anything for

its coming. On that special day, Prana went outside and I watched him through the window. I noticed that he

was madly digging (挖) holes and bringing the apples to the ground so they could be seen above the snow. I

did not know why he was doing this. He seemed to want to do something special.

    When I called him back, he had his usual one apple in his mouth. About five minutes later, I looked outside.

The garden was completely covered with birds. Prana had dug up all those apples for his bird friends to eat.

He knew that they wouldn't have stored enough food for the coming winter!

1. Prana was            . [ ]

A. the writer

B. a boy

C. a bird

D. a dog

2. I wasn't always happy because            . [ ]

A. Prana loved apples

B. Prana caught an apple and ate it

C. the apples fell on the ground and were dirty

D. Prana brought the dirty apples into the house

3. On the snowy day, Prana            . [ ]

A. ate up all the apples

B. dug holes to put the apples in them

C. brought the apples under the snow to the ground

D. left the house and died

4. The birds flew to the garden to            . [ ]

A. look for Prana

B. eat the apples

C. make new homes

D. store food for the winter

5. The topic of the story is about            . [ ]

A. apples

B. animals

C. love

D. life

有机磷酸酯类中毒时，抢救药阿托品无效的中毒症状是

A．流涎

B．出汗

C．胸闷

D．缩瞳

E．肌震颤

当土层的自重应力小于先期固结压力时，这种土称为超固结土

下列关于氧化锌避雷器特点描述正确的是（）。

A、残压高

B、通流量小

C、有续流

D、残压低

YJ17卷烟机大压板调整时，应保证大压板（）和水平对准量棒后，再紧固螺钉。