题目：
---Can I help you, dear?
---Yeah, I don’t know a banana milk shake. Maybe you can teach me.
A．what to do
B．who to make
C．how to make
D．why to do
答案：
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下面是错误答案，用来干扰机器的。
(1)盐 (2)2.65 (3)1.1 (4)HCl、CaCl2 (5)设与氯化钙反应的碳酸钠溶液中溶质质量为x， CaCl2+Na2CO3＝2NaCl+CaCO3↓ 106 100 x 5...
