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【简答题】
并联相同的电池可以使()值增大,而()值保持不变;串联相同的电池可以使()值增大,而()值保持不变。
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举一反三
【单选题】We asked both John and Jerry,but______could offer a satisfactory explanation.
A.
neither
B.
either
C.
both
D.
nor
【单选题】We asked both john and jerry, but ______ could offer a satisfactory explanation.
A.
both
B.
either
C.
neither
D.
none
【简答题】容器在使用前必须经过洗涤,盛装测金属类水样的容器,先用___,用开水冲洗,再用___的盐酸或硝酸浸泡8h,用自来水冲洗,清洗干净
【单选题】We asked John and Jerry,but ________ of them could offer a satisfactory explanation.
A.
either
B.
none
C.
both
D.
neither
【单选题】Jerry has promised to keep the secret, so he won't tell anyone ________ asked to.
A.
until
B.
now that
C.
unless
D.
even though
【简答题】用两个铂电极电解 KOH 水溶液。当析出 1 mol 氢气和 0.5 mol 氧气时,通过的电荷量是 C·mol -1 。
【单选题】I asked Jerry and Ken to come to my house for study, but ______ of them came. [ ]
A.
none
B.
either
C.
neither
D.
both
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