问题
选择题
In order to make students have a good knowledge of science subjects, they are encouraged to______ their own science experiments.
A．operate
B．direct
C．manage
D．conduct
答案
答案：D
conduct意思为 “进行; 实施”；conduct an experiment做实验。operate 操作；开动(机器)等；direct管理；导演；manage 管理；处理；操纵。