火灾的发生要有三个条件，即通常所说的燃烧三要素是什么？（）A、煤炭 B、氧气 C、热源D

某一同学做匀速直线运动去新华书店买书，在书店停留一会又做匀速直线运动返回出发点。在下图中，可以大致表示该同学运动的s-t图像是其中的哪一个(   ).

She toured China _____ she was fourteen.          [ ]

A. when

B. why

C. what

D. how

                                                     Bugs Bunny's Hoping Carrot Hunt

     In this game you are Bugs Bunny.and your goal is to reach the finish line.A carrot truck has spilled its cargo! Gather as many carrots as you can, and when you get the big carrot, you'll be able to jump even higher! Instructions: Use the mouse to move Bugs left and right, and click to jump a gap while gathering carrots. Category: Action 

                                                                Mushroom Madness

You are in charge of protecting several farms.It's up to you to make sure the mushrooms there reach maturity before the animals in the forest get their hands on them.Use your swatter (苍蝇拍) to fight off anything that comes near them; use heavier weapons if necessary. Instructions: Slap any creature that conies near your mushrooms.Use the mouse to control the swatter.If you see a "power up", click to use it.Collect coins to buy upgrades after each level. Category: Action

                                                           Rudolph's Kick and Fly

Santa's little helpers have worked all year preparing for Christmas.When Santa finally leaves to deliver his presents, the elves(精灵)head down to the snowfields with Rudolph, the reindeer, to play their favorite game: Kick and Fly! Instructions: 1.Use the mouse to aim, and click to launch an elf. 2.While in the air, click again to catch, and to gain extra height. 3.The goal is to collect as many Christmas ornaments(装饰物)possible, and get 10 points for each one. Tips: If you're heading towards an obstacle, be sure to avoid it! Category: Action  

                                                                      Click Flick

Your mission is to save chicks falling from the sky.Use your trampoline (蹦床) to bounce them up and direct them into a nest.But hurry-if you don't, many chicks will fall and lose their lives.There will be falling bombs, worms, nuts and eggs and you can get extra points by collecting the worms and nuts.Save the amount of chicks shown to unlock the next level! Instructions: Move the chicks left and right using keys or the mouse. Category: Adventure

1.The main purpose of the passage is to __    ___.

A.tell us different categories of games

B.ask us to decide which game is the best

C.introduce several interesting computer games

D.let us evaluate whether we are interested in the games

2.If a player has collected some worms and nuts, he __    ___.

A.is playing Mushroom Madness          

B.will lose the game quite soon

C.will get 10 points for each one        

D.will get extra points and get ahead

3.Which of the following statements about the games is TRUE according to the passage?

A.Bugs Bunny needs to be fast to win.

B.All four games are in the same category.

C.Players can only use the mouse to control the targets.

D.The number of elves decides whether a player wins in Rudolph's' Kick and Fly.

4.If a player wants to become stronger to drive animals away, he should try to _____.

A.find a "power up" or use heavier weapons .

B.collect falling bombs as quickly as possible.

C.click the elf while it's in the air.      

D.get the big carrot while running.

5.In which game are there obstacles you must avoid?

A.Bugs Bunny's Hopping Carrot Hunt.    

B.Mushroom Madness.

C.Rudolph's Kick and Fly.          

D.Click Flick.

如果完全垄断厂商在两个相互分割的市场中具有完全相同的需求曲线，则该垄断厂商（）。

A.不能采取价格歧视 

B.可以采取价格歧视 

C.无所谓采不采取价格歧视 

D.上述观点都不对

理财规划师在与客户会谈之前应当准备所需的介绍性资料，这些资料不包括( )。

A．所在机构的宣传和介绍材料

B．所在机构的营业执照副本复印件

C．理财规划师个人身份证明材料

D．理财规划师理财方案样本