下列不能单独使用的控制键是( )。 A.ctrl B.alt C.del D.en

题型:多项选择题

问题:

下列不能单独使用的控制键是( )。

A.ctrl

B.alt

C.del

D.enter

考点:会计资格考试会计从业资格(会计电算化)初级会计电算化
题型:多项选择题

阅读理解。

     Sometimes, people are not clear about what kind of food is healthy and what kind of food may do harm

to our health. The USDA has prepared a food guide to help people learn about which kind of food is the

healthiest to eat. The food guide describes six main food groups: meat ( like fish and chicken), dairy ( like

milk and cheese),grains (like bread and rice),fruit, and vegetables. The last group is fats and sweets. The

USDA also suggests how much of each food group is healthy to eat daily. Though this guide was prepared

by the US government, it is very useful for people all over the world.

     (1) As a result of years of study, we know that too much animal fat is bad for our health. For example,

Americans eat a lot of meat and only a small amount (量) of grains, fruit and vegetables. Because of the way

they eat, they have a high rate (率) of cancer and heart disease. In Japan, people eat large amounts of grains

and very little meat. The Japanese also have a very low rate of cancer and heart disease. The Japanese live

longer than anyone else in the world. However, when Japanese people move to the US, the rate of heart disease

and cancer goes up as their eating habit changes. And as hamburgers, ice creams and other high-fat foods

become popular in Japan, the rate of heart disease and cancer is going up there as well. (2) People are also

eating more meat and dairy food in other countries, in those countries the disease rate is going up with the

change of people's eating habit. Doctors everywhere suggest people eat more grains, fruit and vegetables and

less meat and dairy food.

     (3) Eating healthily is important for children as well as their parents. When parents have poor eating habits,

their children usually do, too. After all, children eat the same way as their parents. When parents eat healthy

food, the children will learn to enjoy it, too. Then they will develop good eating habits. Doctors suggest parents

give their children healthier food such as fruit, vegetables and juice.

     Everyone wants to live a long, healthy life. We know that the food we eat affects (影响) us in different

ways. For example, doctors believe that fruit and vegetables can really protect people from many different

diseases. On the other hand, animal fat can cause (引起) diseases. We can change our eating habits now and

enjoy many years of healthy living.

1. 将(1)处的句子翻译成汉语。

    ___________________________________________ 

2. 将(2)处的句子改写为含定语从句的句子。 

    ___________________________________________ 

3. 将(3)处的句子改写成同义句。 

    ___________________________________________ 

题型:多项选择题

关于膝关节骨性关节炎,最常见的畸形是()

A.伸直畸形

B.屈曲畸形

C.内翻畸形

D.外翻畸形

E.过伸畸形

题型:多项选择题

如图a是研究小球在斜面上平抛运动的实验装置,每次将小球从弧型轨道同一位置静止释放,并逐渐改变斜面与水平地面之间的夹角θ,获得不同的射程x,最后作出了如图b所示的x-tanθ图象,则:

(1)忽略一切阻力造成的影响,在该实验中,x与tanθ的理论关系应满足x=______ (用v0、g、θ表示)

(2)由图b可知,小球在斜面顶端水平抛出时的初速度v0=______.实验中发现θ超过60°后,小球将不会掉落在斜面上,则斜面的长度为______m.(g取10m/s2

题型:多项选择题

(28分)根据下列材料,结合所学知识,完成(1)-(4)题。

材料一:左图为非洲四个跨国生态保护区分布示意图,右图为尼日尔河流域等高线图。

材料二:下图是2008年尼日利亚农产品进出口构成示意图

材料三:近年来,尼日尔河中下游地区沙尘暴现象严重,其中2012年03月23日发生的严重沙尘天气造成多架航班延误或取消,给人们的出行带来严重影响。

(1)A河流域主受____(气压带或风带)控制,其气候特点是____;图中生态保护区的主要植被类型是__________。 (6分)

(2)尼日尔河和A河相比,水能资源较丰富是___________;流量季节变化较大是__________,影响其流量季节变化的主导因素是____。尼日尔河流域水资源最主要的功能是____。(8分)

(3)试分析尼日尔河中下游地区沙尘暴现象严重的自然原因。   (4分)

(4)分析尼日利亚的农业生产结构中存在的问题和解决的措施。  (10分)

题型:多项选择题

关于西双版纳的叙述,错误的是(  )

A.澜沧江穿境而过

B.与老挝、缅甸接壤,可以发展边境旅游

C.热带雨林气候为主

D.热带雨林景观和独特的民族风情是主要旅游资源

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