2007年中国什么资源总量比常年减少了8.7%（） A.煤炭 B.天然气 C.水 D

(每题的备选项中，只有1个最符合题意)

土中水的体积与土中孔隙体积之比为土的( )指标。

A．含水量

B．饱和度

C．界限含水量

D．孔隙比

阅读理解。

     One of Harry's feet was bigger than the other. "I can't find suitable shoes for them," he said to his

friend, Jack.

     "Why don't you go to a shoemaker?" Jack said, "A good one can make you the right shoes. "

     "I don't want to go to any shoemaker, " Harry said, "Aren't they very expensive? "

      "No," Jack said, "Some of them aren't. There's a good one in our town. Here's his address."

      Harry went to the shoemaker in Jack's town a few days later, and the shoemaker made him some

shoes.

      Harry went to the shop again a week later and looked at the shoes. Then he said to the shoemaker

angrily, "You are a foolish man! I told you to make one shoe bigger than the other, but you made one

smaller than the other. "

1. What was Harry's trouble?

    ________________________________________________________________________

2. Did Jack help him?

    ________________________________________________________________________

3. What did Jack give Harry?

    ________________________________________________________________________

4. When did Harry go to the shoemaker first?

    ________________________________________________________________________

5. Was Harry pleased with his new shoes?

    ________________________________________________________________________

从A地到B地，甲车要用4小时，乙车要用5小时，甲车的速度比乙车快______%，乙车的速度比甲车慢______%．

拉削分为（）拉削和（）拉削。

一般技术操作建造木板密闭对托泥板的要求是（）

A.托泥板宽度为30-60mm

B.与顶板间距为30-50mm

C.两个头钉子距板头间距不大于50mm

D.托泥板不少于3个钉子