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【单选题】
打开气相色谱仪温控开关,柱温调节电位器旋到任何位置时,主机上加热指示灯都不亮,下列所述原因中不正确的是( )。A.
加热指示灯灯泡坏了
B.
铂电阻的铂丝断了
C.
铂电阻的信号输入线断了
D.
实验室工作电压达不到要求
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举一反三
【简答题】针对防晒化妆品,激发消费者的问题认识。
【单选题】The children in our family are always _____ to their elders.
A.
respectable
B.
responsive
C.
respectful
D.
respected
【简答题】The children in our family are always ______ (respect) to their elders.
【简答题】Children are our future, and it’s up to us to arm them with the tools to succeed. Sadly, today’s children are being armed with more erous tools like weapons （武器）, drugs and gangs. Once a relativel...
【单选题】The children in our family are always _____________ to their elders.
A.
respect
B.
respective
C.
respectful
D.
respectable
【单选题】The children in our family are always ____ to their elders.
A.
miserably
B.
reflected
C.
valued
D.
respectful
E.
appreciated
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