(1)NH4Cl溶液显______性(填“酸”、“中”或“碱”,下同),请用离子

题型:问答题

问题:

(1)NH4Cl溶液显______性(填“酸”、“中”或“碱”,下同),请用离子方程式解释:______.

(2)Na2CO3溶液显______性,请用离子方程式解释:______

(3)把氯化铁溶液蒸干,得到______固体,反应方程式为______;

(4)已知Al2(SO43水解后生成了胶体溶液可用于净水,请用离子方程式解释:______.

(5)在0.10mol•L-1的Na2CO3溶液中,下列离子浓度关系正确的是______(填写编号)

A.c(Na+)=c(CO32-)+c(HCO3-

B.c(OH-)=c(HCO3-)+c(H+

C.c(Na+)+c(H+)=c(OH-)+c(HCO3-)+2c(CO32-

D.c(Na+)=2c(CO32-)+2c(HCO3-)+2c(H2CO3

考点:粒子浓度大小的比较沉淀溶解平衡
题型:问答题

请说明下面这幅漫画的内容,并揭示其寓意。(6分)

(原题无谩画)

题型:问答题

估算74×a9的得数比______大、比______小.

题型:问答题

患者男性,41岁,因“18小时前跌伤,昏迷10分钟,后头枕部肿痛、头昏、头痛,心神不宁”来诊。查体:体温37.3℃,脉搏100次/分,呼吸24次/分,血压85/50mmHg(1mmHg=0.133kPa)。头枕部头皮肿胀、压痛;颅骨无凹陷;双侧瞳孔等大等圆,直径3mm,对光反射存在;耳听力正常,耳鼻无流血;口唇红,牙无折断。舌红,苔白,脉弦数。CT:未见外伤性改变。

宜选用的中药内服方剂是()

A.复元活血汤

B.五味消毒饮

C.桃核承气汤

D.苏气汤

E.复元通气散

F.复苏汤

题型:问答题

Lucky is the man who has no “skeleton in his closet.” When a man has done something in his life that he is ashamed of, that he wants to hide, he is said to have a “skeleton in his closet.” Some people may have more than one skeleton.

As we have noted many times, it is hard to find out how these expressions begin. Sometimes, we get some hard facts. But more often we have to depend on guesswork. And that is true of this phrase, which came from England.

Before 1832, English law did not permit a doctor to cut open a dead human body for scientific examination, unless it was the corpse(尸体) of an executed(处决) criminal.

But when it became legal, more and more doctors demanded skeletons for a more scientific study of medicine. It was helping in the advance of modern medicine. The demand had become so strong that men began to rob tombs and sell skeletons to doctors at high prices.

We are told that a doctor would usually buy just one skeleton for scientific study. It became very important in his work. But he had to keep it hidden because most people objected to keeping such a thing. As a rule, the doctor keep his skeleton in some dark corner where it could not be seen, or hide it in a closet.

After a time, people began to suspect every doctor of hiding a skeleton in the closet. From this suspicion, the phrase“a skeleton in the closet”took on a broader, more general meaning: to describe anything that a man wanted to keep others from discovering. It could be proof of a criminal act, or something much less serious. Well, that is one theory.

One writer, however, believes that the phrase might have come from something that really happened. It is his guess that a hidden closet in some old English country home may have turned up a real skeleton, clear proof of some old family shame or crime. Well, one man's guess is as good as another. But this sounds like a story by the great French novelist, Balzac.

Balzac tells us of a man who suspected his wife of having a lover. The husband comes home by surprise. But she hears him and quickly hides her lover in the closet of her bedroom. He enters her room and asks her if she is hiding her lover. He says he will not open the door to the closet if she promises him there is no one there; He will believe her. She answers firmly that she is not hiding anyone in the closet.

The husband then begins to build a solid brick wall against the closet. His wife watches, knowing that her lover will never come out alive. But she will not change her story and admit her guilt.

小题1:Which of the following situations is now suitable for using the phrase “skeleton in the closet”?

A.You have stolen something precious and hide them in the closet.

B.You are a doctor and have to keep a skeleton for research.

C.If you have cut open a dead human body for scientific examination you should keep the

skeleton secret.

D.You have done a crime or done something foolish, but you want to keep others from discovering it.

小题2:Which of the following is right according to the text?

A.In the 19th century, doctors realized the importance of anatomy (解剖) in the development of

medicine.

B.The doctors of the ancient times liked to collect as many skeletons as possible

C.The thieves stole skeletons from tombs in order to help the doctors.

D.It is legal that corpses of anybody are cut open for scientific examination in history.小题3:From the story Balzac told we know that the wife's lover must have become ______.

A.a corpse

B.a phrase

C.a skeleton

D.a story

题型:问答题

按照财务制度和企业会计准则,新增固定资产价值的计算对象为( )。

A.分部工程

B.单位工程

C.单项工程

D.建设项目

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