单项选择题
A. to estimate the length of cable that was to be made B. to make some sound experiments in the oceans C. to measure the depths of two oceans D. to collect samples of sea plants animals
A. those who earned a living from the sea B. some early intercontinental travellers C. the American Navy D. the company which proposed to lay an undersea cable
A. women have to show their beauty through their looks B. beautiful clothes can make women more attractive C. women should lay more emphasis on their own qualities D. women are more curious about new things than men