可使感染细胞发生融合的病毒是()
A.流感病毒
B.腺病毒
C.麻疹病毒
D.鼻病毒
E.埃可病毒
参考答案:C
解析:可使感染细胞发生融合的病毒是麻疹病毒。
—Do you know _________?
—I'm not sure. Maybe an artist. [ ]
A. what the man with long hair is
B. what is the man with long hair
C. who the man with long hair is
D. who is the man with long hair
连杆盖和连杆大端采用组合镗孔,为了防止装配时配对错误,在连杆上应()。
A.刻有记号
B.装有定位销
C.做到结构各异