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【单选题】
下列关于病毒叙述错误的是A.
病毒个体极小
B.
病毒需要活细胞寄生
C.
病毒只有一种类型的核酸
D.
病毒对抗生素敏感
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皮皮学刷刷变学霸
举一反三
【单选题】DNA复制时,以5'-TAGA-3'为模板,合成产物的互补结构为
A.
5＇-TCGA-3＇
B.
5＇-TAGA-3＇
C.
5＇-ATCT-3＇
D.
5＇-AUCU-3＇
E.
5＇-UCUA-3＇
【单选题】I was about to leave when it _______to me that I had not turned off the gas in the kitchen.
A.
Appealed
B.
happened
C.
occurred
D.
struck
【简答题】翻译:我希望它能战胜所有对手,夺得冠军称号
【简答题】To Whom It May Concern: On March 5, 2012 , I bought a Perfect Muffin Kit(松饼粉 ) from your store at Midfield Shopping Center. The cashier who assisted me was George. George was very friendly and told me...
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