—I think classical music is more popular than folk music.

—I don't agree with you. Folk music is ________ classical music.

 [ ]

A. as popular as

B. so popular as

C. less popular than

D. similar to

宫颈癌最常见的早期症状是

A．接触性出血
B． * * 大出血
C．绝经后出血
D．血性白带
E． * * 水样排液