问题
选择题
Usually an adult man can grow about 1.7 meters tall, _____ a few may grow as short as 1.3 meters.
A．while
B．or
C．for
D．so
答案
答案：A
根据句意“通常一个成年男子能长到一米七，而有很少的只有一米三高。”while“虽然”，表转折，故选A。
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