单项选择题

For some serious coin collectors, a coin with a different date, mintmark, and even a little ______ in design is counted as a different coin.

A．contrast
B．diversity
C．variation
D．variety
<上一题 目录 下一题>
热门 试题

单项选择题
If I hadn't given you a hand in time of crisis, you ______ on air now.
A．couldn't have put
B．wouldn't be putting
C．didn't put
D．won't put
单项选择题
To produce a mighty book, you must choose a great
A．matter
B．topic
C．theme
D．thesis
相关试题