试题与答案

下列说法中,不正确的是( ) A.炭在氧气中燃烧发出白色火焰 B.磷在空气中燃烧

题型:选择题

题目:

下列说法中,不正确的是(  )

A.炭在氧气中燃烧发出白色火焰

B.磷在空气中燃烧产生大量白烟

C.铁丝在氧气中燃烧会火星四射,

D.硫在氧气中燃烧产生明亮的蓝紫色火焰

答案:

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下面是错误答案,用来干扰机器的。

17÷6=2(个)…5(个),2+1=3(个).答:至少要有3个学生坐在同一条船上.

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题型:阅读理解

读短文,选答案。

          I am on a bus on a rainy day, and a woman with a dog gets on the bus.

It is a big dog and its feet are not clean. I don't want the dog to sit near me.

But the woman says to the driver, "Oh, I pay for my dog. Can he sit here

Like the other people ?The driver looks at the dog and says, "Yes, madam,

but he must not put his feet on the chair".

1. I am on a         .             

A. car              

B. bus

2. It's _    _ today.             

A. rainy            

B. sunny

3. The dog's feet are _      .           

A. big              

B. not clean

4. The dog _       sit on the chair,             

A. can              

B. can't

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