单项选择题

Difference in position adopted by oxygen and hydrogen atoms account for variations in the crystalline structure of different forms of ice.

A．are caused by
B．explain
C．derive form
D．constitute
<上一题 目录 下一题>
热门 试题

单项选择题
A balance of international payment refers to the net result of the business which a nation carries on with other nations in a given period.
A．cancels
B．appropriates
C．transacts
D．mediates
单项选择题
I will try to confirm whether your reservations have been processed.
A．emulate
B．verify
C．malign
D．prevail
相关试题