单项选择题

Most diamonds can be found ______.

A．in Africa
B．in gravel at the bottom of rivers and streams
C．in desert sand
D．in or near meteorites
<上一题 目录 下一题>
热门 试题

单项选择题
The following are the characters of diamonds EXCEPT ______.
A．they sparkle and glitter in the light
B．they are very hard
C．they are very valuable
D．they are tiny
单项选择题
Diamonds are so hard that only ______ can cut it.
A．a man who knows all about diamonds
B．diamond-edged tools
C．a special cutter
D．diamond cutter
相关试题