We might not contact the rescue team. _____, the rescue team itself might get lost.

A．Still worse

B．bad still

C．Badly still

D．Worse still

干扰素抗病毒的作用机制是

A．阻碍病毒吸附于敏感细胞

B．与病毒结合，阻止其穿入和脱壳

C．直接抑制病毒的生物合成

D．诱导细胞产生抗病毒蛋白

E．干扰病毒的释放