下列物质中,属于强电解质的是 A.CO2 B.盐酸 C.BaSO4 D.NaO

题型:选择题

问题:

下列物质中,属于强电解质的是

A.CO2

B.盐酸

C.BaSO4

D.NaOH溶液

考点:弱电解质电离的影响因素弱电解质的电离度弱电解质的电离
题型:选择题

美国制造系统

题型:选择题

Whose math book is this?

It     be      . Her name is on it.

A. can’t …Ann

B.may…Jim’s

C.shouldn’t…Joy

D.must..Ann’s

题型:选择题

 

第二节:完形填空(共20小题,每小题1.5分,满分30分)

阅读下面短文,从短文后各题所给的A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并将答案写在答题卡上。

After their business trip, John and Mary returned, eager to see their lovely children. As they drove into their home town feeling glad to be back, they noticed 21  , and they went off their usual route to see what it was. They found a  22  in flames. Mary said, “Oh, well, it isn’t our fire, let’s go home.”

But John 23  closer and screamed, “That home belongs to Fred Jones who works at the plant. He wouldn’t be 24  work yet, maybe there is something we could do. ” It has nothing to do with us, Mary 25 .

But John drove up and stopped and they were both horror-stricken to see the whole house in 26  . A woman on the lawn was screaming, “The children! Get the children!” John 27  her by the shoulder saying, “Get a hold of yourself and tell us where the children are!” “In the 28 ,” cried the woman, “down the hall and to the left. ”

In spite of Mary’s disagreement John 29  for the basement which was full of smoke and 30  hot. He found the door and two children. 31 he left he could hear some more sobbing. He 32  the two badly frightened children into 33  arms and started back asking how many more children were down there. They told him 34  more and Mary grasped his arm and screamed, “John! Don’t go back! It’s 35  ! That house will fall down any second. ”

36  he ran into the smoke-filled hallway and at last he found both children. As he climbed up the 37 stairs, the thought went through his mind that there was something strangely 38 about the little bodies next to him, and at last when they came out into the  39  and fresh air, he found that he had just  40 his own children.

The baby-sitter had left them at this home while she did some shopping.

21.A.direction       B.mistake          C.smoke       D.danger

22.A.plant        B. home           C.store           D.kitchen

23.A.ran          B.walked              C.rode        D. drove

24.A.off         B.at                C. to                D.on

25.A.whispered   B. disagreed          C.nodded        D.required

26.A.flames     B.pieces             C.ruins          D.silence

27.A.pushed      B.greeted           C. seized          D.stopped

28.A.hall       B.department         C.house          D. basement

29.A.went      B. rushed            C.asked           D.reached

30.A.heavily     B.terribly            C.partly           D.slightly

31.A. As       B.If                 C.Since            D.Unless

32.A.comforted  B.protected          C.recognized       D. delivered

33.A.cheering   B.freezing           C.suffering           D. waiting

34.A.many            B.several           C.two                 D.three

35.A.foolish     B. dangerous            C.practical           D.painful

36.A.But        B.So               C.Instead            D.Therefore

37.A.wide       B.dirty             C.final               D. endless

38.A.particular    B.familiar         C.interesting          D.fortunate

39.A.car         B.crowd            C. sunlight           D.arms

40.A. found     B.     rescued       C.lost               D.Missed

题型:选择题

留置导尿术:

题型:选择题

上方山楞伽塔始建于(),现结构为()层()面。

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