下列关于不同动物结构和功能的叙述中，错误的是_刷题宝

题干

下列关于不同动物结构和功能的叙述中，错误的是（）

A：蝗虫的外骨骼是其适应陆地生活的重要特征

B：家兔发达的盲肠与其植食性有关

C：家鸽每呼吸一次就在肺和气囊中各进行一次气体交换

D：蚯蚓和沙蚕都是具有许多体节的环节动物

上一题下一题 0.0难度选择题更新时间:2016-04-18 05:31:54

答案(点此获取答案解析）

C

同类题1

读一读，判断句子正误。
Peter draws a monster(怪物). It's tall and strong. It has a big head and a big body. Its earsand eyes are small. Its mouth is very big. Its teeth(牙齿) are sharp(锋利的). It has two long arms. Its arms arevery strong. It has two big hands. It has two long legs and two big feet. Itcan run very fast(快).

同类题2

用括号内所给动词的正确形式填空

1. We____ (eat) up all the food, but we still feel hungry.

2. --Have you handed in your project?

--No. I____ (check)it again right away.

3.That is only way we can imagine____ (reduce) the waste of water in the bathroom.

4. ---Why didn't you watch Running Man on TV?

---I____ (make) up the music for the coming School Art Festival.

5. I don't know the competition of model planes____ (cancel) the other day.

同类题3

算式我会写。

同类题4

20°W、160°E组成的经线圈是（　　）

同类题5

如图，在一笔直的海岸线l上有A、B两个观测站，AB=2km、从A测得船C在北偏东45°的方向，从B测得船C在北偏东22.5°的方向，则船C离海岸线l的距离（即CD的长）为（　　）

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