单项选择题


A．from
B．with
C．upon
D．to
<上一题 目录 下一题>
热门 试题

单项选择题
A．fruitB．fruitfulC．failureD．fruitless
A．fruit
B．fruitful
C．failure
D．fruitless
单项选择题
What is the passage mainly about
A．The scientific revolution in the seventeenth century.
B．Reasons that chemistry developed slowly as a science.
C．The practical aspects of chemistry.
D．Difficulties of organizing chemical knowledge systematically.
相关试题