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2000年国务院颁布的《中华人民共和国电信条例》所称电信，是指利用有线、无线的电磁系统或者光电系统，传送、发射或者接收（）形式信息的活动。A.
语音
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文字
C.
数据
D.
图像
E.
其他任何形式信息
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【简答题】低压电器通常是指工作在交流电压小于 ,直流电压小于 的电路中,起通、断、保护、控制或调节作用的电器设备。
【简答题】Directions: There is a passage with ten blanks. Y ou are required to select one word for each blank from a list of choices given in a word bank. Read the passage through carefully before your c...
【简答题】P lease paraphrase the following passage (from Cohen & Page) “Paraphrasing is basically putting ideas you read into your own words. Although using direct quotes may be easier, paraphrasing looks and f...
【简答题】A．Deposit some money in a hank. B．Read the lease carefully and sign it. C．Ask the landlord for a damage deposit. D．Sign the contract and pay a security deposit.
【简答题】设随机变量X的方差D(X)=4，且函数的数学期望E(X 2 )=8，求X的数学期望E(X)．
【简答题】A．Deposit some money in a bank. B．Read the lease carefully and sign it. C．Ask the landlord for a damage deposit. D．Sign the contract and pay a security deposit.
【简答题】Directions: There is a passage with ten blanks. Y ou are required to select one word for each blank from a list of choices given in a word bank. Read the passage through carefully before your c...
【简答题】A．Deposit some money in a bank. B．Read the lease carefully and sign it. C．Ask the landlord for a damage deposit. D．Sign the contract and pay a security deposit.
【简答题】A．Deposit some money in a bank. B．Read the lease carefully and sign it. C．Ask the landlord for a damage deposit. D．Sign the contract and pay a security deposit.
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