He doesn't _____ his homework at home. [ ]
A. do
B. does
C. did
D. /
答案:A
公司10职级以上员工及直线经理认为有竞业要求的员工在离职后()年内不得到同行业竞争对手公司应聘工作。
国家对矿产资源勘查实行统一的()制度。