题目内容
18、William Beebe, one of the first men ______ the depth of the sea in a bathysphere, got interested in oceanography because of one book.
A. exploring B. having exploring
C. to be exploring D. to explore
试题答案
18、D
相关题目
题目内容
18、William Beebe, one of the first men ______ the depth of the sea in a bathysphere, got interested in oceanography because of one book.
A. exploring B. having exploring
C. to be exploring D. to explore
试题答案
18、D