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【简答题】
Some deviant uses of technology are criminal, though not all participants see it that way. Downloading of music, typically protected by copyrights, is widely accepted. The pirating of software, motion 【M1】______ pictures, and CDs have become big business. At conventions and swap【M2】______ meets, pirating copies of movies and CDs are sold openly. Some of the【M3】______ products are obviously counterfeiting, but many come in sophisticated 【M4】______ packaging, completely with warranty cards. When vendors are willing 【M5】______ to talk, they say they merely want to be compensated for their time and the cost of materials, or that the software they have copied is in the public domain. Since most of these black market activities are clearly illegal, 【M6】______ many consumers and small-time pirates are proud of their behavior. They may even think themselves smart for figuring a way to avoid the 【M7】______ 'unfair' prices charged by 'big corporations.' Few people see the pirating of a new software program or a first-run movie as a threat to the public good, as they would embezzle from a bank. Similarly, most【M8】______ businesspeople who 'borrow' software from another department, even though they lack of a site license, do not think they are doing anything【M9】______ wrong. No social stigma attaches with their illegal behavior. 【M10】______ 【M1】
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【多选题】正弦量的有效值等于它的( )的平方在一个周期内的( )的开方。因此又被称为均方根值。
A.
瞬时值
B.
有效值
C.
平均值
D.
幅值
【多选题】毛泽东总结中国共产党成立以来的历史经验,指出中国共产党在中国革命中战胜敌人的三大法( )。
A.
党的建设
B.
武装斗争
C.
土地革命
D.
统一战线
E.
根据地建设
【多选题】毛泽东总结中国共产党成立以来的历史经验,指出中国共产党在中国革命中战胜敌人的三大法( )。
A.
党的建设
B.
武装斗争
【判断题】正弦量的有效值等于它的瞬时值的平方在一个周期内的平均值的开方。
A.
正确
B.
错误
【判断题】名义货币供给增加,货币市场曲线发生左移。
A.
正确
B.
错误
【简答题】正弦量的有效值等于它的瞬时值的平方在一个周期内的平均值的开方,所以有效值又称为()。
【多选题】毛泽东总结中国共产党成立以来的历史经验,指出中国共产党在中国革命中战胜敌人的三大法宝是( )
A.
统一战线
B.
土地革命
C.
武装斗争
D.
党的建设
【判断题】名义货币供给增加,货币市场曲线发生左移。
A.
正确
B.
错误
【单选题】世界卫生组织建议普通人的食盐摄入量上限为:
A.
4g / d
B.
6g / d
C.
10g / d
D.
15g / d
【多选题】正弦交流电的平均值、有效值、最大值之间的关系,以下表述正确的是()。
A.
正弦交流电在一个周期内方向改变一次,它的平均值等于零
B.
交流与直流在相同的时间内通过同一电流电量相等时的直流值,就是交流电的平均值
C.
交流电电流、电压、电动势经半波整流后的平均值是有效值的0.45倍,是最大值的0.318倍
D.
交流电电流、电压、电动势经全波整流后的平均值是有效值的0.9倍,是最大值的0.707倍
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