半强有效市场是指证券价格不仅已经反映了历史价格信息，而且反映了当前所有与公司证券有关的公开有效信息，例如盈利预测、红利发放、股票分拆、公司并购等各种公告信息。因此，如果市场是半强有效的，市场参与者就不可能从任何公开信息中获取超额利润，这意味着（ ）无效。

There is now increased competition among motor-vehicle manufactures___ has resulted inbetter cars at lower prices.

2023-05-26 从业资格银行证券

Mayor Williams proudly described the city as a place where the citizens are___ for theirhospitality.

2023-05-26 从业资格银行证券

There are no ___differences between the two products, despite the fact that each is madefrom different materials.

2023-05-26 从业资格银行证券

Whoever is in charge of ___ the event must have the ability to work on multiple tasks atthe same time.

2023-05-26 从业资格银行证券

Even though the conference is not for another eight weeks, we have decided to begin markingthe necessary ___ now.

2023-05-26 从业资格银行证券

The advisory committee ___announced that up to thirty percent of the company's workforcewould have to be let go.

2023-05-26 从业资格银行证券

Mr. Hernftndez is not available at the time the work crew is scheduled to arrive, and ___is Ms. Kekkonen.

2023-05-26 从业资格银行证券

This hypothesis states that environments that are too clean may actually make the __ system develop oversensitive responses.

2023-05-26 从业资格银行证券

The violent ___of his youth reappeared and was directed not only at the arm but at his wife as well.

2023-05-26 从业资格银行证券

One of our railway station attendants ___ glad to assist you with your luggage.

2023-05-26 从业资格银行证券