南京“雨花茶”是一种绿茶,绿茶中含有单宁酸(化学式为C76H52O46),具有抑

题型:选择题

问题:

南京“雨花茶”是一种绿茶,绿茶中含有单宁酸(化学式为C76H52O46),具有抑制血压上升、清热解毒等功效。下列有关单宁酸的说法正确的是

A.单宁酸属于有机化合物

B.单宁酸由碳原子、氢原子和氧原子构成

C.单宁酸中氢元素的质量分数最小

D.单宁酸中碳、氢、氧元素质量比为76:52:46

考点:化学反应方程式的书写化学图标化学反应方程式的配平化学反应方程式的意义
题型:选择题

阅读理解。

     Many people like to travel by plane because it's fast, but I don't like it because an airport is usually far

from the city. You have to get there early and wait for hours for the plane to take off' and it is often late.  

You can't open the window. You can't choose the food.

     I like traveling by train. I think trains are safe. Railway stations are usually in cities. When you are late

for a train you can catch another one.You can walk around in the train and open the windows. You can

see many interesting things on your way.  But I know it takes a little more time.

     I also like cars. You can start your journey when you want to, and you don't need to get to a  railway

station or a bus stop. Also you can carry many things with you in a car. But sometimes there are too

many cars on the road.

根据短文内容,选择正确答案。

1. Why do many people like to travel by plane?

A. Because it is fast.

B. Because it is saf'e.

C. Because you can walk around in the plane.

D. Because you can open the door.

2. Which is not the good thing about the train?

A. It is safe.

B. It takes a little more time.

C. You can open the windows.

D. You can see many funny things.

3. If you want to take a lot of  things with you, what do you take to go out?

A. A bus.            

B. A bike.

C. A train.            

D. A car.

4. What is the bad thing about the car travel?

A. You needn't go to a station.

B. You can start your journey when you want to.

C. There are too many cars on the road.

D. The cars are too expensive.

5. What does the writer think of the plane, train and car?

A. He thinks it takes a lot of time to get to the airport and wait for a plane.

B. He likes to take a train because it takes a little more time.

C. He likes to take a car because he has a car.

D. He doesn't like the plane or the train.

题型:选择题

下列字形全都正确的一项是                       (  )

A.枕藉弥望垝垣游目骋怀

B.班驳训鸽凋零方枘圆凿

C.淅沥桑葚槃石酾酒临江

D.桂棹玳瑁落漠怨天尤人

题型:选择题

甲公司被依法宣告破产,管理人清查结果表明:甲公司的破产财产共2500万元,发生破产清算费用和共益债务110万元,欠职工工资和法定补偿金140万元.欠税款1500万元,破产债权 4000万元,其中乙公司拥有破产债权1000万元。则根据《企业破产法》规定,乙公司就破产债权受偿的金额为( )万元。

A.150

B.187.5

C.225.5

D.315

题型:选择题

转导

题型:选择题

秘书在其职能活动中所扮演的基本角色是()。

A.智囊角色

B.公共关系活动家角色

C.领导角色

D.助手角色

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