在房屋的立面图中，下方地面线用加粗线，其线宽为粗实线的（） A.1.2倍 B.1.3

对未取得驾驶证驾驶机动车的，追究其法律责任。

阅读短文，选择正确答案。

      Long, long ago people made fires from lightning (闪电). But they had to keep the fire burning, for they

couldn't start it again if there was no lightning. Later, they found out hitting two pieces of stone together could

make a spark (火花). The spark could fire dry leaves. In this way they could make the fire again if it went out.

Then people also learned to make a fire by rubbing (摩擦). They made a hole on a big piece of wood and put a

smaller stick into the hole. They turned the stick again and again. After a few minutes they got a fire.

      As years went by, people learned other ways to make a fire. Sometimes they used the heat (热) from the

sun. They held a piece of glass in the right way and made a piece of paper on fire.

      About two centuries ago, people began to make matches (火柴). Matches brought people a quick and easy

way to make fires. Toady matches are still being used, but people have more new ways to make fires. One of

them is to use an electric (电子) fire starter. Of course an electric fire starter is much more expensive than a

box of matches. But it is very useful.

1. A spark can _______. [ ]

A. fire any leaves

B. burn anything

C. burn dry leaves

D. keep fires burning

2. We can also get a fire by _______. [ ]

A. making a hole on a big piece of wood.

B. putting a smaller stick into the hole.

C. turning the stick hard for a while.

D. all above together.

3. Matches have been used _______. [ ]

A. for about two thousand years.

B. for about two hundred years.

C. since people began to use fire for cooking

D. since people used the beat from the sun.

4. From this passage we know _______. [ ]

A. an electric fire starter is only used in cars.

B. people haven't used matches since they had electric fire starters.

C. today there are only two ways to make fires.

D. some forest fires happen from lightning.

5. Choose the right order to the ways to make fires people got to know ______.

    a. with a match     b. from the sun     c. from lightning

    d. by rubbing        e. with an electric fire starter [ ]

A. a, b, c, d, e

B. b, c, a, e, d

C. c, d, b, a, e

D. d, a, c, b, e

再障下列哪些不正确（）

A.铁剂、叶酸治疗无效

B.骨髓增生低下

C.浆细胞、单核及淋巴细胞等非造血细胞增多

D.巨核细胞数量减少

E.慢性病例，贫血、感染、出血较轻

简述年度投资规模与在建投资规模的区别与联系。

算法的时间复杂度是指

A．执行算法程序所需要的时间

B．算法程序的长度

C．算法执行过程中所需要的基本运算次数

D．算法程序中的指令条数