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问题 单项选择题

题干: 以下指标预测市场将出现底部，可以考虑建仓的有（ ）。

A．K线从下方3次穿越D线

B．D线从下方穿越2次K线

C．负值的DIF向下穿越负值的DEA

D．正值的DIF向下穿越正值的DEA

答案

参考答案：A

判断题

抵押权的实现是通过抵押物的处分获得优先受偿权而实现。（）
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单项选择题

(56) is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string.

(57) is a protocol that most USENET machines now use it to allow news articles to propagate from one machine to another over a reliable connection.

(58) is an approach preferred by cable TV providers. In this solution the fiber terminates at an opto-electrical converter and the final segment is a shared coaxial cable.

(59) is a device used to connect two separate network that use different communication protocol.

(60) is a digital-to-digital polar encoding method in which the signal level is always either positive or negative.

（59）是（）

A.Router

B.Gateway

C.Bridge

D.hub
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