A:25m
B:16m
C:50m
D:144m
①肉食者谋之(之:____)
②公与之乘(之:____)
③公将鼓之(之:____)
④登轼而望之(之:____)
⑤公问其故(其:____)
⑥吾视其辙乱(其:____)
说明:生铁中杂质不溶于水,不与盐酸反应.
Go to the____. Read a book.