绩效管理有利于促进民主政治的发展。()

According to the text, the problem with the study of human nature is______.A．that it is mysteriousB．insights lead to more questions and mysteryC．it is almost always used for the wrong purposesD．there are too many competing theories 点击查看答案

According to the first paragraph, children as an Internet market target group______.A．are using it at an earlier and earlier ageB．are overtaking the adult market due to their spending powerC．are growing at an incredible rateD．have created a growing advertising market 点击查看答案