有一铝铁混合物,甲、乙同学为了研究它的组成,分别取等质量的两份样品进行实验: (

题型:计算题

问题:

有一铝铁混合物,甲、乙同学为了研究它的组成,分别取等质量的两份样品进行实验:

(1)甲向样品中加入一定浓度的NaOH溶液,充分反应后,共收集到0.336 L气体;

(2)乙向样品中加入一定浓度的稀盐酸,样品全部溶解,共收集到0.560 L气体;(气体体积都是标准状况下的体积)

求样品中铝与铁的物质的量分别是多少?

考点:金属、非金属的有关计算
题型:计算题

阳春三月,小伟的爸爸将发了芽的马铃薯切成带芽小块进行种植,并长成新的马铃薯植株.这种繁殖方式叫做(  )

A.分裂生殖

B.孢子生殖

C.有性生殖

D.无性生殖

题型:计算题

为男性导尿,提起阴茎与腹壁成60°角可使

A.耻骨下弯消失

B.耻骨前弯消失

C. * * 膜部扩张

D.耻骨下弯和前弯均消失

E.以上均不对

题型:计算题

Dad came in the midnight. We heard every sound, but we pretended to be asleep.

Next morning he looked weak and thin, sitting in a chair by the kitchen fire. The light of the fire shone through his long empty sleeve. Everything went as usual. Grandma found something to do in the bedroom. Grandpa went out for some water. Mother, with her back to us, was getting the cakes ready for breakfast.

But nothing was right. When grandma came out of the bedroom, she walked on tiptoe. When grandpa came back, he said nothing about the weather. At breakfast Mother passed us the fruit and said something, but her voice was too high.

At last my sister, Lou, pushed back her chair. “It’s your turn to wash the dishes.” But I had washed the dishes the night before. I said nothing because it was not right to quarrel in front of Dad just home with the empty sleeve.

“It is your turn,” Lou said again. I looked at her in surprise.

“It is not,” I said because I suddenly remembered Mother had told us to go on as usual.

“Children, children,” Mother said in a quiet, glad kind of voice.

And Dad was smiling because he felt at home at last.

小题1:What do you know happened to Dad in the story?

A.He was badly ill.

B.He had a long journey.

C.He drank too much.

D.He lost one of his arms.小题2:The family        when they saw Dad’s empty sleeve.

A.was too surprised to do anything

B.felt sad and cried a lot

C.tried not to show their feelings

D.showed no worry at all小题3:From the story, we know          .

A.the two sisters often quarreled about who should wash the dishes

B.the family liked seeing the two sisters quarrelling after breakfast

C.Dad loved the two sisters very much though they often quarreled

D.Mother told the two sisters to quarrel with each other the night before小题4:Which of the following can be the best title of the story?

A.The Quarrelling Sisters

B.Dad Was Back

C.After the Accident

D.An Empty Sleeve

题型:计算题

患者突然昏仆,不省人事,肢体软瘫,目合口张,鼻鼾息微,手撒肢冷,汗多,二便自遗,舌痿,脉微欲绝。其中风属

A.中经络

B.阳闭证

C.阴闭证

D.脱证

E.后遗症

题型:计算题

下列物品不得在监控室内存放()

A、饭盒

B、磁铁

C、水杯

D、报纸

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