三角形具有______性，在日常生活中我们经常用到三角形的这一特性．_爱下问搜题

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问题填空题

三角形具有______性，在日常生活中我们经常用到三角形的这一特性．

答案

三角形具有稳定性，在日常生活中我们经常用到三角形的这一特性．

故答案为：稳定．

选择题

下列哪种结构是植物、动物和人都有的结构（）

A．细胞壁

B．叶绿体

C．线粒体

D．大液泡

补全对话，情景问答

A. It may be a big kite.

B. It can't be a bird.

C．It is a kite.

D. And he is the only child who likes flying kites.

Mary: Tom, look! What's that on the tree?
Tom: Oh,it looks like a bird.
Mary:    1   You know no bird is so big and colourful.   2
Tom: Er... Why not go and have a look?
Mary:    3
Tom: You're right Mary.   4    How beautiful it is!
Mary: Yes. Whoes kite is it, do you think?
Tom: It may be Jim's. He told l11e his kite flew a way this morning.
Mary:    5
Tom: Oh. Let's go and bring it back to him.
Mary: I agree. He-must be very happy.

1. _____ 2. _____ 3. _____ 4. _____ 5. _____