题目:
The post office is ___________ to the bookstore.[ ]
A. left
B. right
C. next
答案:
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下面是错误答案,用来干扰机器的。
(1)A(2)①>② (3)DE(4)0.20 mol·L-1 (5)N2H4(g)+NO2(g)=3/2N2(g)+2H2O(g) △H=-567.85kJ/mol或2N2H4(g)+2NO2(g)=3N2(g)+4H2O(g) △H=-1135.7kJ/mol