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【判断题】
一4 数据通信 数据又分为模拟数据和数字数据。模拟数据和数字数据都可以用模拟信号和数字信号表示和传播。
A.
正确
B.
错误
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参考答案:
举一反三
【单选题】They soon began to investigate the cause of the fire.
A.
affirm
B.
invent
C.
examine
D.
deny
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【单选题】Hb氧饱和度的高低主要决定于
A.
Hb 的浓度
B.
氧分压
C.
血浆 PH
D.
CO2 分压
查看完整题目与答案
【简答题】北京图书大厦网上书店在首都电子商城开业3个月以后,便开始盈利,这说明他们实施B2C模式的电子商务取得了成功。其主要标志是: (1)较好地解决了全球性的安全支付问题。在首都电子商务工程试点中,由首都电子商城配置了自主开发的具有高位加密算法的安全协议。在与国内外银行和公司的合作下,采用多种具有实效的现代支付工具与网上银行等支付方式,以及多种安全协议和高位加密算法,并使具有网上安全支付功能的网上购书由北...
查看完整题目与答案
【简答题】(lucky) ______ , the firemen came right and soon put out the fire.
查看完整题目与答案
【简答题】北京图书大厦网上书店在首都电子商城开业3个月以后,便开始盈利,这说明他们实施B2C模式的电子商务取得了成功。其主要标志是: (1)较好地解决了全球性的安全支付问题。在首都电子商务工程试点中,由首都电子商城配置了自主开发的具有高位加密算法的安全协议。在与国内外银行和公司的合作下,采用多种具有实效的现代支付工具与网上银行等支付方式,以及多种安全协议和高位加密算法,并使具有网上安全支付功能的网上购书由...
查看完整题目与答案
【单选题】The firemen arrived ___ the fire broke out.
A.
soon after
B.
before long
C.
long before
D.
after soon
查看完整题目与答案
【单选题】Suddenly fire broke out in the room and everything in It was soon on. ______ fire.
A.
/, a
B.
the, /
C.
a, /
D.
/, the
查看完整题目与答案
【单选题】Suddenly _____ fire broke out in the room and everything in it was soon on. _____ fire.
A.
/, a
B.
the, /
C.
a, /
D.
/, the
查看完整题目与答案
【单选题】A fire_____in the lower story during the midnight and soon the whole building was in flames.
A.
was breaking out
B.
was broken out
C.
broke out
D.
break out
查看完整题目与答案
【单选题】The porter ______ the fire-brigade as soon as he saw the fire in the stock, which went up in smoke.
A.
ought to call
B.
ought to have called
C.
should call
D.
should have calling
查看完整题目与答案
相关题目:
【单选题】They soon began to investigate the cause of the fire.
A.
affirm
B.
invent
C.
examine
D.
deny
查看完整题目与答案
【单选题】Hb氧饱和度的高低主要决定于
A.
Hb 的浓度
B.
氧分压
C.
血浆 PH
D.
CO2 分压
查看完整题目与答案
【简答题】北京图书大厦网上书店在首都电子商城开业3个月以后,便开始盈利,这说明他们实施B2C模式的电子商务取得了成功。其主要标志是: (1)较好地解决了全球性的安全支付问题。在首都电子商务工程试点中,由首都电子商城配置了自主开发的具有高位加密算法的安全协议。在与国内外银行和公司的合作下,采用多种具有实效的现代支付工具与网上银行等支付方式,以及多种安全协议和高位加密算法,并使具有网上安全支付功能的网上购书由北...
查看完整题目与答案
【简答题】(lucky) ______ , the firemen came right and soon put out the fire.
查看完整题目与答案
【简答题】北京图书大厦网上书店在首都电子商城开业3个月以后,便开始盈利,这说明他们实施B2C模式的电子商务取得了成功。其主要标志是: (1)较好地解决了全球性的安全支付问题。在首都电子商务工程试点中,由首都电子商城配置了自主开发的具有高位加密算法的安全协议。在与国内外银行和公司的合作下,采用多种具有实效的现代支付工具与网上银行等支付方式,以及多种安全协议和高位加密算法,并使具有网上安全支付功能的网上购书由...
查看完整题目与答案
【单选题】The firemen arrived ___ the fire broke out.
A.
soon after
B.
before long
C.
long before
D.
after soon
查看完整题目与答案
【单选题】Suddenly fire broke out in the room and everything in It was soon on. ______ fire.
A.
/, a
B.
the, /
C.
a, /
D.
/, the
查看完整题目与答案
【单选题】Suddenly _____ fire broke out in the room and everything in it was soon on. _____ fire.
A.
/, a
B.
the, /
C.
a, /
D.
/, the
查看完整题目与答案
【单选题】A fire_____in the lower story during the midnight and soon the whole building was in flames.
A.
was breaking out
B.
was broken out
C.
broke out
D.
break out
查看完整题目与答案
【单选题】The porter ______ the fire-brigade as soon as he saw the fire in the stock, which went up in smoke.
A.
ought to call
B.
ought to have called
C.
should call
D.
should have calling
查看完整题目与答案
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