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【简答题】
已知在1mol/L HCl介质中，已知φӨ′Fe3+/Fe2+=0.68V；φӨ′Sn4+/Sn2+=0.14V，则下列滴定反应：2Fe3+ + Sn2+ = 2Fe2+ + Sn4+到达化学计量点时的电位为___V。
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【简答题】阅读理解。 Four girls went to school together every day by taxi. One day one of the girls said, 'There is a test this morning, let's get to school late. Then we can miss the test.' 'What can we say to the ...
【简答题】A．Only one out of four girls cries less often than boys. B．Of four boys, only one cries very often. C．Girls cry four times as often as boys. D．Only one out of four babies doesn't cry often.
【简答题】A．Only one in four girls cries less often than boys. B．Of four boys, only one cries very often. C．Girls cry four times as often as boys. D．Only one in four babies doesn't cry often.
【单选题】标志着第三世界形成的是( )
A.
东亚与北非等国独立
B.
1960 年非洲 17 国独立
C.
万隆亚非会议的召开
D.
1968 年英法在非洲的殖民统治基本瓦解《当代世界经济与政治》
【多选题】以成本为中心的定价是以产品的成本为主要考虑因素定价,包括包括有以下哪几种方法,即( )
A.
成本加成定价法
B.
目标利润定价法
C.
边际贡献定价法
D.
固定成本定价法
【单选题】The four girls can help me through this ____process.
A.
adjust
B.
adjustment
C.
adjustive
D.
advantage
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