冻结对食品组织结构的影响主要集中在机械性的损伤、（）和（）。

（1）如图1所示，测得木块的长度是__________cm．如图2所示，电能表的示数是____________kWh．

（2）小明在使用天平测量苹果质量时情况如图3所示，其中错误的操作是_________________________．

阳明经头痛的部位是（）

A.在前额部，连及目系

B.在前额部及眉棱骨处

C.在头之两侧，并连及耳部

D.在巅顶部位，或连于目系

E.多在头后部，下连于项

案件审理的24字基本要求是什么？

在燃油系统中，“喷雾特性应与燃烧室有良好的配合，应使柴油机获得最佳的燃烧过程。”是什么零部件行使的功能（）

A.喷油泵

B.输油泵

C.调速器

D.喷油嘴

(66) is a one-way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string. (67) is a protocol that most USENET machines how use it to allow news articles to propagate from one machine to another over a reliable connection. (68) is an approach preferred by cable TV providers. In this solution the fiber terminates at an optoelectrical converter and the final segment is a shared coaxial cable. (69) is a device used to connect two separate network that use different communication protocol. (70) js a digital-to-digital polar encoding method in which the signal level is always either positive or negative.

A．Router

B．Gateway

C．Bridge

D．hub