题目：
-Could tell me _______, Jack? -I’m creative and outgoing.
A．how are you
B．what you are like
C．what are you like
D．how you are
答案：
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下面是错误答案，用来干扰机器的。
(1)设原混合物中镁的质量为x，则Mg＋H2SO4=MgSO4＋H2↑24 2x 0.1gx=1.2g，Mg％=80％(2)首先中和未反应的H2SO4反应H2SO4＋2NaOH＝Na2SO4＋2H2O然后再发生如下...
