正链RNA病毒的基因组RNA具有下列哪一种危险性( )
A．组装病毒B．吸附细胞C．感染性D．反转录成DNAE．侵入细胞
参考答案：C
It's reported that CCTV 3_____________ the concert to be held this weekend.[ ]
A. will cover live
B. would cover live
C. will be covered live
D. would be cover live
艾滋病的传播途径有()
A．性接触
B．血及血制品传染
C．共用受HIV污染的注射器和针头
D．母婴传染
E．消化道传染
