下列物质属于氧化物的是[ ]
A.CuO
B.CH4
C.C6H12O6
D.NH3
答案:A
There are too many students asking teachers to help in the teachers’ office, but this room is ____ small ____ hold them.
A.so, to
B.too, that
C.too, to
D.such, that
关于柴胡的药理作用,错误的是()
A.抗过敏
B.降血脂
C.保肝利胆
D.抗消化道溃疡
E.解热