行业自律是一种有效的制度安排，其能够发挥作用有赖于政府的强制实施。()

未分类题We can learn from the text that New York City schools______.A．have been having problemsB．are among the best in the worldC．require all students to attend summer schoolD．are promising in their potential

未分类题According to the article, which is one of the reasons why legislators have not made summer school compulsory?A．Students don't like summer school.B．Instituting such a program would be very expensive.C．Students who need help the most don't even attend.D．The program has had mixed results.

未分类题开展集体教学活动需要做哪些准备()

判断题中央银行的主要业务活动没有银行固有办理'存、贷、汇'业务的特征。()

未分类题建构主义的知识观()