集体合同是指劳动契约或劳动协议,是劳动者与用人单位确立劳动关系,明确双方权利与义务的协议。()
参考答案:错
Jane gave a talk _______ yesterday afternoon. She didn't feel nervous at all. [ ]
A. in a public
B. in public
C. at public
D. at a public
资料1
请根据以上资料,选择以下栏目的正确选项:
“包装种类”栏:()。
A.卷
B.箱
C.包
D.裸装