题目

汉代中央和地方官府向社会征聘人才的制度是（    ）A. 察举制       B. 征辟制      C. 科举制      D. 世袭制 答案：B Online shopping , when properly ____, can save a lot of time , money and energy.    A. done    B. is done   C. having done   D. doing