Wasitshewhosuggested_______themeetingoff

题型:选择题

问题:

Was it she who suggested _______ the meeting off? [ ]

A. us to put 

B. to put

C. to us to put 

D. to us putting

考点:不定式
题型:选择题

1919年,Langmuir提出等电子原理:原子数相同,电子总数相同的分子,互称为等电子体.等电子体的结构相似,物理性质相似.根据上述原理,下列分子互为等电子体的是(  )

A.N2、CO

B.H2O、HF

C.NH3、CH4

D.SO2、O3

题型:选择题

基差交易是指按一定的基差来确定(),以进行现货商品买卖的交易形式。

A.现货与期货价格之差

B.现货价格与期货价格

C.现货价格

D.期货价格

题型:选择题

佛山禅西大道一期已于2011年“五一”正式开通,设计主道80km/h,辅道50km/h,汽车以50km/h的速度走完禅西大道一期全程,所需时间是7.8min。二期工程石湾特大桥是一座矮塔斜拉桥,主墩水中承台为正方形,单个承台混凝土方量为1225m3。图中碾压路机有10t,与被压路面的总接触面积是2000cm2。请你根据上述材料计算: 

 

(1)佛山禅西大道一期的长度。

(2)若混凝土的密度为20×103kg/m3,求石湾特大桥单个承台混凝土的质量。

(3)碾压路机对地面的压强。

题型:选择题

阅读理解。

     "Old wives tales" are beliefs lasting for many generations. For example, most of us remember our parents'

telling us to eat more of certain foods or not to do certain things. Is there any truth in these teachings? Some

of them agree with present medical thinking, but others have not passed the test of time.

     Did your mother ever tell you to eat your carrots because they are good for your eyes? Scientists now

report that eating carrots can help prevent a serious eye disease called macular degeneration. Eating just one

carrot a day can reduce the possibility of getting this disease by 40%. Garlic is good for you, too. It can kill the

type of virus that causes colds.

     Unfortunately, not all of Mom' s advice passed the test of medical studies. For example, generations of

children have been told not to go swimming within an hour after eating. But research suggests that there is no

danger in doing so. Do sweets cause tooth problems? Well, yes. However, sticky sweets made with grains tend

to cause more problems than sweets made with simple sugars.

     Even though science can tell us that some of our traditional beliefs don't hold water, there is still a lot of

truth in the old wives' tales. After all, much of this knowledge has been accumulated from thousands of years

of experience in family health care. We should respect this body of knowledge even as we search for clear

scientific support to prove it true or false.

1. Which of the following is TRUE according to the test? [ ]

A. Eating garlic is good for our eyes.

B. Sticky sweets are damaging our teeth.

C. Swimming after a meal is dangerous.

D. Carrots prevent people from catching colds.

2. The phrase "hold water" in the last paragraph most probably means "_____". [ ]

A. to be believable

B. to be valuable

C. to be admirable

D. to be suitable

3. What is the author's attitude toward "old wives tales" in the text?[ ]

A. Subjective

B. Objective

C. Dissatisfied

D. Curious

题型:选择题

数据元素之间存储顺序与逻辑顺序一致的数据结构为()。

A.线性表

B.树

C.二叉树

D.图

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