下列化学反应只属于氧化反应,但不属于化合反应的是[ ] A.高锰酸钾制氧气 B.

题型:选择题

问题:

下列化学反应只属于氧化反应,但不属于化合反应的是[ ]

A.高锰酸钾制氧气

B.红磷在空气中燃烧

C.木炭在氧气中燃烧

D.石蜡在空气中被点燃

考点:氧化反应化合反应
题型:选择题

命题作文脸

要求:自定立意,自拟标题,自选文体,不少于800字。

题型:选择题

We tried so hard to make things better for our kids but we made them worse. For my naughty boys, I’d know better. I’d really like for them to know about hand-me-down clothes and home-made ice cream and leftover meatloaf. I really would.

My cherished boys, I hope you learn humility (谦逊) by surviving failure and that you learn to be honest even when no one is looking. I hope you get a black eye fighting for something you believe in. I hope you have to share a bedroom with your younger brother. And it is all right to draw a line down the middle of the room, but when he wants to crawl (爬) under the covers (被子) with you because he’s scared, I hope you’ll let him. And when you want to see a Disney movie and your kid brother wants to tag along, I hope you take him.

  I hope you have to walk uphill with your friends and that you live in a town where you can do it safely. I hope you learn to dig in the dirt and read books, and when you learn to use computers, you also learn how to add and subtract (减) in your head.

May you skin your knee climbing a mountain, burn your hand on the stove and stick your tongue on a frozen flagpole (旗杆). I hope you get sick when someone blows smoke in your face. I don’t care if you try beer once, but I hope you won’t like it.

I sure hope you make time to sit on a porch with your grandpa or go fishing with your uncle.

I hope your father punishes you when you throw a baseball through a neighbor’s window, and that your mother hugs you and kisses you when you give her a plaster of pared mold (一个石膏模型) of your hand.

  These things I wish for you—tough times and disappointment, hard work and happiness.

小题1:Who wrote the letter?

A.A grandmother.

B.A grandfather.

C.A father.

D.A mother.小题2:What does the author hope for the boys?

A.they learn a lesson from a fight with others.

B.they know how to calculate with computers.

C.they get on well with family members..

D.they burn their hand on the stove and stick their tongue on a frozen flagpole.小题3:It can be inferred from the text that the boys _________________.

A.often fight with others

B.are to develop good qualities

C.always keep their grandpa company

D.score high in the exam小题4: Why does the author write the letter?

A.To show the boys it’s not easy growing up.

B.To teach the boys dos and don’ts on the way growing up.

C.To help the boys to avoid making mistakes on the way growing up.

D.To encourage the boys to fully experience life on the way growing up.

题型:选择题

这个标志是何含义?()

A.禁止左转

B.此路不通

C.禁止通行

D.超高绕行

题型:选择题

秉公执法,办事公道,其核心就是一个“()”字。

A.明

B.廉

C.正

D.公

题型:选择题

梅花鹿是我国的()级保护动物。

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