单项选择题

While others sat at home studying papers on the subject, Jefferson got into a boat and made （） observations.

A．of-the-spot
B．in-the-spot
C．at-the-spot
D．on-the-spot

<上一题 目录 下一题>
热门 试题

单项选择题
Carter agreed to try to reduce American oil imports and control （） in the United States.

A．infection
B．inflation
C．inspection
D．inspiration
单项选择题
I learn that Mr. Rolleston has opened （） with you for the publication of a series of Irish books.

A．experiments
B．oppositions
C．negotiations
D．agreements
相关试题