半侧脊髓病变出现病变水平以下A．同侧运动、痛温觉障碍，对侧深感觉障碍 B．对侧运动、

氧化铜被下列物质还原时，均可得到金属铜。若反应中生成气体的质量与试管中固体减少的质量相等，则反应中所用的还原剂是 [ ]

A.氢气   

B.碳    

C.一氧化碳    

D.氨气

Mr. Brown was going away for a week. Before he left, he said to his son, "if anyone asks for me, you can tell him that your father has been out for doing something, and will be back in a week, then be sure to ask him to sit down for a cup of tea."

"OK, Dad," said his son. But he was afraid his son couldn't remember this, he wrote these words down on a piece of paper and gave it to him. His son put it into his small pocket, took it out and looked at it every now and then.

Four days passed, but no one came to see his father. The boy thought that there was no man to come and that the piece of paper was of no more use for him, so he burnt it that evening.

The next afternoon, someone knocked at the door. The boy opened it. A man was standing at the door and said, "Where is your father?" The boy put his hand into his pocket at once and looked for the piece of paper. He could not find it. He suddenly remembered he had burnt it, so he shouted, "No more." The man was very surprised. He asked, "No more? I met your father last week. When did it happen?"

"Burnt yesterday evening."

小题1:Mr. Brown told his son that _____.

A．he would be away from home for four days

B．he would be back in seven days

C．he would be back in a month

D．he liked a cup of tea小题2:Mr. Brown wrote the words down on ________.

A．the wall

B．the door

C．a piece of paper

D．his son's pocket小题3:A man came to visit the boy's father on ________.

A．the second day

B．the third day

C．the fourth day

D．the fifth day小题4:The man was very surprised because _________.

A．he thought the child's father was dead

B．the child didn't ask him to sit down

C．the child gave him a cup of tea

D．he couldn't find that piece of paper小题5:What was burnt?

A．The piece of paper

B．Mr. Smith

C．The visitor

D．The boy

阅读《从百草园到三味书屋》中文段，回答1—5题。

　　不必说________的菜畦，________的石井栏，高大的皂荚树，________的桑葚；也不必说鸣蝉在树叶里长吟，肥胖的黄蜂伏在菜花上，轻捷的叫天子（云雀）忽然从草间直窜向云霄里去了。单是周围的短短的泥墙根一带，就有无限趣味。油蛉在这里低唱，蟋蟀们在这里弹琴。翻开断砖来，有时会遇见蜈蚣；还有斑蝥，倘若用手指按住它的脊梁，便会啪的一声，从后窍喷出一阵烟雾。何首乌藤和木莲藤缠络着，木莲有莲房一般的果实，何首乌有臃肿的根。有人说，何首乌根是有像人形的，吃了便可以成仙，我于是常常拔它起来，牵连不断地拔起来，也曾因此弄坏了泥墙，却从来没有见过有一块根像人样。如果不怕刺，还可以摘到覆盆子，像小珊瑚珠攒成的小球，又酸又甜，色味都比桑葚要好得远。

1．本文选自《___________》，作者___________，原名___________。

2．原句将画横线处填写完整。

____________________________________________

3．文中划线句中，加粗的“伏”能否改成“停”字，“窜”字能否改成“飞”字？

____________________________________________

4．本段中作者描写了童年时的四件趣事，它们依次是_________，_________， _________，_________。

5．百草园在作者的笔下情趣盎然，表现了作者怎样的思想感情？

____________________________________________

磁场削弱电阻烧损的原因是（）。

A.主发电机电流过大

B.牵引电动机励磁绕组短路

C.牵引电动机主极连线断路

D.牵引电动机附加极连线断路

下面关于磁粉检测安全防护说法不正确的是（）。

A.使用黑光灯时，人眼应避免直接注视黑光光源

B.存在漏光的滤光板不用立即更换

C.干法检测时，检测区域要保持通风良好

D.使用通电法或触头法时要防止电弧打火