如果股票市场价格处于震荡、波动状态之中，恒定混合策略就可能优于买入并持有策略。 ( )
参考答案：对
That is not my book. It's_______.[ ]
A. Jim brother
B. Jim's brother's
C. Jim brother's
D. Jim's brother
“YAG”中文名称是：（）.
A.人造钇铝榴石
B.人造钆镓榴石
C.人造钛酸锶
