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

<上一题目录下一题>

热门试题

单项选择题

Defied in the 3rd paragraph probably means ______.

A．doubted
B．gave proof to
C．challenged
D．agreed to

单项选择题

By using the phrase the human quality of technology , the author refers to the fact that technology______.

A．has a great impact on human life
B．has some characteristics of human nature
C．can replace some aspects of the human mind
D．does not exist in the natural world