单项选择题

"Defied" in the 5th paragraph probably means" ______".

A．doubted
B．gave proof to
C．challenged
D．agreed to
<上一题 目录 下一题>
热门 试题

单项选择题
The proposal to lay a telegraph cable from Europe to America made oceanographic studies take on a(n) ______.
A．academic aspect
B．military aspect
C．business aspect
D．international aspect
单项选择题
It was ______ that asked Maury for help in oceanographic studies.
A．the American Navy
B．some early intercontinental travelers
C．those who earned a living from the sea
D．the company which proposed to lay an undersea cable
相关试题