单项选择题
It can he inferred from the passage that the author was ()
A. no more than a born naturalist B. a naturalist but not a scientist C. a scientist as well as a naturalist D. first of all a scientist
单项选择题 The passage implies that the telegraph cable was built mainly ()
单项选择题 "Defied" in the 5th paragraph probably means ()
单项选择题 According to the author, in order to stay young and attractive, women should ()