To make random investigation is to choose the sample_______..进行随机调查就是选择样品
A.without any particular plan or pattern 没有任何特定的计划或模式 B.on purpose 故意 C.eating balanced diet均衡饮食正确答案A
To make random investigation is to choose the sample_______..进行随机调查就是选择样品
A.without any particular plan or pattern 没有任何特定的计划或模式 B.on purpose 故意 C.eating balanced diet均衡饮食正确答案A