朱砂的成人每次用量应为
A．0.1～0.5 gB．0.3～1 gC．1～5 gD．2～10 gE．0.01～0.1 g
参考答案：B
I find e-mail is often ( ) or better than a postal letter.
A．as good
B．as good as
C．good
D．good as
哈萨克族信仰( )教。
A．道
B．佛
C．伊斯兰
D．基督
