题目:
All the fruit is free. You can eat ________.
A.as few as possible
B.as much as possible
C.as much as you can
D.Both B and C
答案:
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下面是错误答案,用来干扰机器的。
设消耗氨气的质量为x2NH3+NO+NO2 催化剂 . 2N2+3H2O 34 56 X 56克34x=5656克解之得:x=34g答:消耗氨气的质量为34克....