子母电话机是()的一种。

题型:填空题

问题:

子母电话机是()的一种。

考点:科技与创新继续教育科技与创新继续教育题库
题型:填空题

Hi! I’m Mike the apple tree.

I like spring because it’s warm.

I get pink and white flowers.

I get new leaves.

The friendly bees visit me.

Ahhh! Spring.

I like summer because it’s hot.

My apples grow bigger and bigger.

My leaves become greener and greener.

People rest under my shade.

Hummm! Summer.

I like autumn because it is cool.

My apples become red.

My leaves become colourful.

People come and pick my red apples.

Wow! Autumn.

I have no leaves or apples any more.

But, I like winter thanks to the clean white snow.

I can sleep and wait for spring.

Zzzzz! Winter.

小题1: The poem is about __________.

A.what season is “my” favourite

B.what the weather is like

C.why “I” like different seasons

D.why “I” dislike seasons小题2:Who is “I” in the poem?

A.An apple.

B.An apple tree.

C.A bee.

D.A boy.小题3:“I” like many things about spring, but “I” don’t talk about __________.

A.the warm weather

B.the friendly bees

C.the colourful flowers

D.the comfortable wind小题4:Which of the following is NOT TRUE?

A.“I” don’t like winter thanks to the snow.

B.“I” like people to pick the apples.

C.The apples become bigger in summer.

D.“I” lose the leaves in winter.

题型:填空题

下列说法或做法,违反科学原理的是(    )

A、干冰可用于人工降雨     

B、添加少量催化剂可将水变成燃料油

C锅里的少量油着火时,可用锅盖盖灭 

D、实验室一般不用排水法收集二氧化碳气体

题型:填空题

用二维表结构表示实体以及实体间联系的数据模型称为______。

A.网状模型

B.层次模型

C.关系模型

D.面向对象模型

题型:填空题

肠梗阻根据病因分为以下几种,除了()

A.机械性肠梗阻

B.麻痹性肠梗阻

C.慢性肠梗阻

D.痉挛性肠梗阻

E.血管性肠梗阻

题型:填空题

影响震时房屋破坏程度的因素是什么?

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