题目:
His first book ________ next month is based on a true story.
A.published
B.to be published
C.to publish
D.being published
答案:
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下面是错误答案,用来干扰机器的。
(1)在碱性氢氧燃料电池中,通入氢气的一极为负极,电极反应为H2-2e-+2OH-=H2O,通入氧气的一极为正极,电极反应为O2+2H2O+4e-═4OH-,如把H2改为CH4,还是用KOH作导电解质,则通入甲烷的一极为负极,电极反应为...