An operation is usually performed by a ______.A．doctorB．dentistC．surgeonD．scient_刷题宝

题干

An operation is usually performed by a ______.

A．doctor

B．dentist

C．surgeon

D．scientist

上一题下一题 0.85难度单项选择更新时间:2010-07-08 02:46:22

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