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【单选题】
密码子的摆动性是指
A.
几乎所有生物均用同一套密码子
B.
翻译时aa-tRNA在mRNA上摆动配对
C.
反密码子第一个碱基与密码子第三个碱基配对不严格
D.
反密码子第三个碱基与密码子第一个碱基配对不严格
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参考答案:
举一反三
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【简答题】Apparently he had some very hurtful _____ (person) problems that were so overwhelming that he was planning to take his own life that day.
【单选题】以下描述属于电阻串联特性的为()。
A.
U=U1+┅+Un
B.
1/R=1/R1+┅+1/Rn
C.
I=I1+┅+In
D.
U=U1+┅+Un
【单选题】少先队以( )教育为根本,以“五爱”教育为基础。
A.
理想信念
B.
道德修养
C.
知识技能
D.
身体素质
【判断题】食用桑果前最好用淡盐水或淘米水浸泡后,再用自来水冲洗更为安全。
A.
正确
B.
错误
【判断题】食用桑果前最好用淡盐水或淘米水浸泡后,再用自来水冲洗更为安全。
A.
正确
B.
错误
【简答题】TIMx_CNT的作用?
【单选题】西湖龙井茶是( )典型代表。
A.
遗址遗迹
B.
建筑与设施
C.
旅游商品
D.
人文活动
【单选题】TIMx_CNT的作用?
A.
控制计数周期
B.
计数
C.
分频
D.
计数重复次数
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