鲸鱼和蝙蝠都属于哺乳动物的原因是( ) A.大脑发达 B.都有发达的肺 C.胎生

题型:选择题

问题:

鲸鱼和蝙蝠都属于哺乳动物的原因是(  )

A.大脑发达

B.都有发达的肺

C.胎生、哺乳

D.都有脊柱

考点:动物的形态结构和功能
题型:选择题

通常情况下,下列物体中属于导体的一组是(  )

A.木尺和橡皮

B.橡胶棒和塑料尺

C.钢尺和碳棒

D.陶瓷杯和玻璃棒

题型:选择题

患者在运动中或运动后出现一侧肢体麻木,动作不灵,伴剧烈头痛、恶心、呕吐等症状属于()过度紧张。

A、单纯虚脱型

B、晕厥型

C、脑血管痉挛型

D、急性胃肠道综合征

题型:选择题

I remember my math teacher Mr. Young very well. He stood out because the kids made fun of him. He was missing one of his fingers, and always pointed at students with his middle finger.

I was not very good at English and math. No matter how hard I tried, I just could not figure out why I did not understand what all the other kids found so easy to learn.

One day, I was told that if I got one more E on my report card, I would be taken to the" big prison for kids".

I tried really hard for weeks. I just couldn’t understand how to make different parts of members into whole things.

The day before report cards were to come out, I knew that Mr. Young would give me an E ,just like he always did.

I went to Mr. Young and told him that the orphanage was going to send me to the big prison if I got another E on my report card. He told me there was nothing he could do;it would be unfair to the other kids if he gave me a better grade than I had actually earned.

I smiled at him and said, "Mr. Young, do you know how the kids make fun of you because you’re missing your finger" He looked at me, moved his mouth to one side and said nothing.

"They shouldn’t do that to you because you can’t help having a finger, Mr. Young. Just like I can’t help not being able to learn numbers and stuff like that. "I said.

The next day, when I got my report card, I tucked it into one of my books. While on the school bus, I opened it : Geography, B+ ; Mechanical Drawing, C- ; English, D- ; History, C- ; Gym, B+ ; Art, C ; Math, D-.

That math grade was the most favorite one I ever received. Because I knew that someone in the world finally understood what it was like for me to be missing a finger inside my head.

The underlined word"tucked" in the passage most probably means“()”.

A. stuck

B. listed

C. hid

D. copied

题型:选择题

为毛 * * 思想的成熟提供必要历史经验的是()。

A.抗日战争的复杂环境和丰富经验

B.中国革命两次胜利和两次挫败的反复比较

C.毛 * * 在全党领导地位的确立和巩固

D.党的思想路线的端正和理论素养的加强

题型:选择题

使用柴油发电机组时,当柴油机油温降到()时,才允许进行停车操作。

A.160℃

B.60℃

C.80℃

D.90℃

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