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问题 问答题

有人把1kg=9.8N，对吗？说出你的正确理解．

答案

kg是物体质量的单位，而N是力的单位，所以1kg不可能等于9.8N

对g=9.8N/kg的含义正确的理解是：1kg的物体受到的重力为9.8N．

单项选择题

(71) is a one -way function that takes an arbitrarily long piece of plaintext and from it computes a fixed-length bit string.
(72) 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.
(73) 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.
(74) is a device used to connect two separate network that use different communication protocol.
(75) is a digital-to-digital polar encoding method in which the signal level is always either positive or negative.

A．ADSL

B．FTTC

C．HFC

D．FTTH
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单项选择题

某企业2013年工业总产值2680万元，却上报为2580万元，剩下100万元作为第二年1月份的产值上报，该企业的行为属于（）

A.提供不真实统计资料的行为

B.虚报统计资料的行为

C.瞒报统计资料的行为

D.篡改统计资料的行为
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