将一个直径为6厘米的铁将一个直径为6厘米的铁球熔化后铸成一个立_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

将一个直径为6厘米的铁将一个直径为6厘米的铁球熔化后铸成一个立方体，则立方体的棱长是（）.

A．

B．

C．

D．

答案

参考答案：D

解析：

解答题

一台织布机3小时织布13.2米。照这样计算，要织220米布需几小时？

补全对话，情景问答

读问句，选出合适的答语。

( ) 1. What's this?
( ) 2. Where is north?
( ) 3. What country is west of China?
( ) 4. What do they speak in Mexico?
( ) 5. What colour is it?

A. North is up.
B. It's the U. K.
C. English.
D. It's a tree.
E. It's black.