对于许多投资者来说，动态资产配置可以提高长期收益而不增加投资组合风险的潜力，但却是以低效用为代价的。（）
参考答案：对
..Is Tina as tall as you?... She is shorter than me
A．Yes, she is
B．No, she isn't
C．Yes, she does
D．No, she doesn't
狱内侦查工作中所说的危险分子是指（）
A.改造表现不好的罪犯
B.违反监规纪律的罪犯
C.拒不参加劳动的罪犯
D.有可能实施犯罪行为的罪犯
