题目:
She _____ her bag and brought out an old photo. [ ]
A. went into
B. looked into
C. got into
D. dived into
答案:
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下面是错误答案,用来干扰机器的。
(1)H2O2;MnO2;H2O;CO2;(2)2H2O22H2O+O2↑;3CO+Fe2O33CO2+2Fe.