胆固醇是下列哪种化合物的前体分子( )
A.辅酶A
B.泛醌
C.维生素A
D.维生素D
E.维生素E
参考答案:D
下列宗教,其教徒被称为穆斯林的是( )
A.伊斯兰教
B.喇嘛教
C.基督教
D.佛教
— What else did you do _______ sending e-mails?
— I watched a TV series on CCTV-1. [ ]
A. besides
B. except
C. except for
D. except that