由公式ρ=m/V得出以下的结论，正确的是

题干

由公式ρ=m/V得出以下的结论，正确的是（）

A：密度跟质量成正比

B：密度跟体积成反比

C：密度跟质量成正比，跟体积成反比

D：密度是物质的一种性质，同种物质的密度一般不随自身质量或体积的变化而变化

上一题下一题 0.0难度选择题更新时间:2020-03-21 07:14:47

答案(点此获取答案解析）

D

同类题1

从方框中选择最佳选项完成对话。

A. What does the bride do before she leaves her family?

B. Yes, I have nothing to do.

C. There are many more customs about the wedding.

D. Could you tell me something about the wedding here?

E. And, when the bride walks into the bridegroom's house, she must eat some noodles.

A: Good morning, David.

B: Good morning, Li Kai.

A: Tomorrow is Saturday. Are you free?

B: ____

A: That's good. Would you like to go to my cousin's wedding with me?

B: I'd love to. ____

A: OK. On the early morning of the wedding, the bridegroom goes to the bride’s home. But before he enters the room, he must hand out some hongbao to children.

B: ____

A: She must cry. It is our old custom here. ____

B: That sounds very interesting!

A: ____ I will tell you later.

B: OK!

题干

答案(点此获取答案解析）

同类题1

同类题2

同类题3

同类题4

同类题5