河北省进入百强县的个数在2001年居全国第几位()
A.6
B.7
C.8
D.9
参考答案:A
_____ Monday morning he wrote an article on grammar.
_____ Monday morning he had written an article on grammar.
A.By
B.On
C.At
D./
神农来到中原的金冈一带,品尝草木,发现()味的草对咳嗽有帮助,()味的草可以治肚子痛。