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【简答题】
In 2012 London Olympic Games, negative competition for the final gold medal occurred in badminton competitions. Some believe that it is not right to focus only on the outcome regardless of the process, while others believe that the process is not that important since the only goal of competition is to win. Whats your opinion? Write a composition of about 200 words on the following topic: Is the Outcome More Important than the Process in Competition?
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【单选题】将25.00ml 0.400mol/L H3P04和30.00ml 0.500mol/L Na3PO4溶液混合并稀释至100.00mL后,溶液组成是( )。
A.
H3PO4+NaH2PO4
B.
Na3PO4+Na2HPO4
C.
NaH2PO4+Na2HPO4
D.
H3PO4+Na3PO4
【简答题】在下图中,当ab间因为故障断开后,用电压表测得Uab为( )V
【单选题】将 25.00mL0.400mol/L H 3 PO 4 和 30.00mL0.500mol/LNa 3 PO 4 溶液混合并稀释至 100.00mL 后,溶液组成是( )。
A.
H 3 PO 4 +NaH 2 PO 4
B.
Na 3 PO 4 +Na 2 HPO 4
C.
NaH 2 PO 4 +Na 2 HPO 4
D.
H 3 PO 4 +Na 3 PO 4
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