A：张秉贵
B：时传祥
C：王进喜
I usually go to school by bike， today I took a bus because it rained heavily．
-- I have a book.
-- !
利用下列实验装置能完成相应实验的是
读“大气垂直分层示意图”回答“蓝蓝的天上白云飘”，歌词中的蓝天白云发生( )
