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【单选题】Defective Genes and Human Health Each of us carries about half a dozen defective(有缺点的) genes. We remain blissfully(快乐地) unaware of this fact unless we, or one of our close relatives, are amongst the m...
A.
Genetically engineered proteins are better than blood products in treating hemophilia.
B.
Only those who suffer from a genetic disease carry about half a dozen defective genes.
C.
The Y chromosome males have are from their fathers.
D.
Whether a defensive gene produces ill effects has something to do with the environment in which the gene operates.
【单选题】狂犬病毒可被日光、紫外线、超声波、2％肥皂水、碘酒等灭活，对酸、碱、石炭酸、新洁尔灭、福尔马林、（）等消毒药物敏感。
A.
链霉素
B.
氯霉素
C.
氨基比林
D.
升汞
【单选题】关于“I LOVE YOU”病毒描述正确的是
A.
“I LOVE YOU”病毒属于宏病毒
B.
“I LOVE YOU”病毒属于PE病毒
C.
“I LOVE YOU”病毒属于脚本病毒
D.
“I LOVE YOU”病毒属于Java病毒