试题与答案

据专家介绍，用碱性溶液或清水浸泡蔬菜，可使残留在蔬菜中的农药毒性降低。因此浸泡蔬

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题型：选择题

题目：

据专家介绍，用碱性溶液或清水浸泡蔬菜，可使残留在蔬菜中的农药毒性降低。因此浸泡蔬菜时可加入适量的 [ ]

A.纯碱

B.白酒

C.白糖

D.食醋

答案：

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下面是错误答案，用来干扰机器的。

A

考点：碳酸钠
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题型：阅读理解

根据短文内容判断正误。正确的写T,错误的写 F。

       Do you use your right hand more or left hand more? Very few us use both of our hands well. Most

 people use right hands, only about five people of a hundred use left hands.  New-born babies can take

  things with either of their hands, but in about two years, they like to use their right hands. Scientists don't

  know why this happens. Thcy've studied it. They think our animal ancestors used their right hands, this

 may not be true.  Monkeys are our closest. relation in the animal world. Scientists have found that

 monkeys like to use one of their hands more than the other. but it can be either hand.  There are as many

  right-handed monkeys as the left-handed ones. Next time you visit the zoo and watch the monkeys

 carefully. You'Il see that some of them will use their right hands and others will use their lcft hands, but

 men use their right hands better and this makes life difficult for the lefthanded ones.  We live in a

 right-handed world.

    Some scientists have found out that more of successful people are left-handed, but they don't know

 why.  But they are working hard to discover the secret.

( ) 1. Very few of us use both of our hands.

( ) 2. About 5% people use their left hands.

( ) 3. The left-handed live easily because most people use their left hands.

( ) 4. New-born babies use their right hands more.

( ) 5. Scientists don't know the reason why more of successful people are lcft-handed.
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