人体呼出的二氧化碳产生于 A.肺泡 B.血液 C.细胞 D.组织液

题型:选择题

问题:

人体呼出的二氧化碳产生于

A.肺泡

B.血液

C.细胞

D.组织液

考点:肺与外界的气体交换呼吸系统的组成和功能演示实验:模拟膈肌的运动
题型:选择题

下列哪种行为属于动物的学习行为(  )

A.刚出生的小袋鼠爬到母袋鼠的育儿袋中吃奶

B.蜜蜂筑巢

C.小鸟在池边喂鱼

D.小鸡绕道取食

题型:选择题

关于产品成本计算的品种法,下列说法中,错误的是()。

A.一般适用于大量、大批生产的单步骤生产企业

B.以产品品种为计算对象,归集和分配生产费用

C.主要适用于单件、小批生产的企业

D.会计期末若存在在产品,需要将产品成本在完工产品与在产品之间进行分配

题型:选择题

语法填空。

阅读下面短文,按照句子结构的语法性和上下文连贯的要求,在空格处填入一个适当的词或使用括号

中词语的正确形式填空,并将答案填写在相应位置上。

     I was on my way to the Taiyetos Mountains. The sun was setting when my car 1______ (break) down

near a remote and poor village. Cursing my misfortune, I was wondering where I was going to spend the

night when I realized that the villagers who had gathered around me were arguing as to 2______ should have

the honor of receiving me 3______ a guest in their house. Finally, I accepted the offer of an old woman who

lived alone in a little house. While she was getting me 4______ (settle) into a tiny but clean room, the head of

the village was tying up his horse to my car to pull it to 5______ small town some 20 kilometers away 6______

there was a garage.

     I had noticed three hens running free in my hostess's courtyard and that night one of them ended up in a

dish on my table. 7______ villagers brought me goat's cheese and hone. We drank together and talked 8______

(merry) till far into the night.

     When the time came for me to say goodbye to my friends in the village, I wanted to reward the old woman

9______ the trouble I had caused 10______.

题型:选择题

問題Ⅱ     の ところに 何を 入れますか。1 2 3 4から いちばん     いい ものを  一つ えらびなさい。

あぶないですから、子どもを 一人で      ないで ください。

A.あそばし

B.あそばせ

C.あそ びさせ 

D. あそばさせ

题型:选择题

战后两极格局解体的原因是什么?两极政治格局的解体具有哪些重大影响?

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