问题
选择题
He took the machine to pieces to find out how it .
A．progressed
B．operated
C．equipped
D．managed
答案
答案：B
词义辨析。Progresse前进，进步； operate操作，经营；equip装备，配备；manage经营，处理；句意：他把机器拆成一块一块的来查明他如何操作。故选B。
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