问题补充:
Inordertomakestudentshaveagoodknowledgeofsciencesubjects,theyareencouragedto______ theirownscienceexperiments.A.operateB.directC.manageD.conduct
答案:
D解析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。