Man's understanding of nature is developing .It never stays at the sane level.A.at the right timeB.for the frist time C.from time to timeD.all the time
问题描述:
Man's understanding of nature is developing .It never stays at the sane level.
A.at the right time
B.for the frist time
C.from time to time
D.all the time
答
应该是D。人类对自然的理解一直在发展?他一直以来就没有停留在一个(固定的)水平。
答
D.
A.at the right time在一个适当的时刻
B.for the frist time第一次
C.from time to time时不时地
D.all the time一直;向来,一向;时时刻刻;每时每刻
人类对自然的了解一直在发展之中,从未停止在一个水平上.