NO.PZ2015122802000086
问题如下：
Technical analysts assume that markets are:
选项：
A.weak-form efficient.
B.weak-form inefficient.
C.semi-strong-form efficient.
解释：
B is correct.
Technical analysts use past prices and volume to predict future prices, which is inconsistent with the weakest form of market efficiency (i.e., weak-form market efficiency). Weak-form market efficiency states that investors cannot earn abnormal returns by trading on the basis of past trends in price and volume.
考点：Efficient Capital Market And Its Forms
当技术分析可以获得超额收益时说明市场是弱势无效的。
