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【简答题】
遗传密码子的特点 包括 通用性、 和 。
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举一反三
【简答题】Paraphrase: The new ruling class had built a cultural barrier against him by building their French against his own language. ... English had come royally into its own.
【单选题】在RLC 串联正弦交流电路中,当端电压与电流同相时,频率与参数的关系满足 ( )
A.
增大电阻R,就可改变电路的谐振频率
B.
调小电容,电路的感性增强
C.
调大电容,电路的性质不变
D.
调小电感,电路的容性增强
【简答题】The new ruling class had built a cultural barrier...his own language. (Para. 11)
【简答题】The new ruling class had built a cultural barrier against him by building their French against his own language.
【简答题】What does the following sentence mean? The new ruling class had built a cultural barrier against him by building their French against his own language. (Para. 11)
【简答题】在RLC串联交流电路中,总电压与各分电压之间的大小关系是U=_________,电路中的总阻抗Z=___________,视在功率、有功功率、无功功率之间的关系为S=_____________。
【简答题】如图,在△ABC中,∠A=80°,∠B=60°,则∠1= .
【简答题】如图1,在△ABC中,∠A=80°,∠B=40°,∠ACD是△ABC的一个外角,则∠ACD=( ).试猜想∠ACD与∠A,∠B的关系是( ).
【单选题】如图1，在△ ABC 中， CD 是∠ ACB 的平分线，∠ A =80°,∠ ACB =60°,则∠ BDC 等于
A.
80°
B.
90°
C.
100°
D.
110°
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