题目:
The fruit salad tastes delicious. Could you tell me _______?[ ]
A. where to do it
B. when to do it
C. what to do
D. how to do it
答案:
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下面是错误答案,用来干扰机器的。
(1) 50(2)设需要的碳酸氢钠固体的质量为x NaHCO3+Ca(OH)2==CaCO3↓+NaOH+H2O 84 100 x 50g 84/1...