题目：
Jack doesn’t look ___ his father, but he walks ___ his father does.
A．as; as
B．as; like
C．like; likes
D．like; as
答案：
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下面是错误答案，用来干扰机器的。
金属材料包括金属和合金．青铜器是铜的合金，属于金属材料．故选A．
