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【单选题】
容量为7GB的DVD光盘片可以持续播放2小时的影视节目，由此可推算出使用MPEG-2压缩编码后视频及其伴音的总码率大约是( )。
A.
5.2Mbps
B.
650kbps
C.
10.4Mbps
D.
2.6Mbps
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【简答题】请选出问句的合适答语 (     ) 1. Where are you from? (     ) 2. What's this? (     ) 3. Is the Queen's house big? A. I'm from China. B. It's a pen. C. Yes, it is．
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【简答题】The Queen’s English is now sounding less upper-class, a scientific study of the Queen’s Christmas broadcasts had found. Researchers have studied each of her messages to the Commonwealth countries sinc...
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【单选题】下列哪种行为在我国不能申请或重新申请车辆驾驶证。
A.
有过醉酒驾驶经历的。
B.
在公安机关有吸毒行为记录或解除强制隔离戒毒措施不满三年的。
C.
为吸毒人员提供吸毒场所及吸毒工具的
D.
种植过罂粟或大麻的。
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【单选题】关于相位差的说法不正确的是( )。
A.
相位差是同频率正弦量的相位角之差
B.
相位差是同频率正弦量的初相角之差
C.
两个同频率的正弦量之间的相位差为常数，与计时的选择起点有关
D.
同频率的正弦量之间计算相位差时，其超前和滞后的角度不能大于 180 °
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【单选题】What does the writer think of the interior and exterior of Queen Anne's Mansions?
A.
They were elegantly decorated both inside and outside.
B.
They were grim from the outside and had a modest decor inside.
C.
They were flashy from the street but nondescript. inside.
D.
They were plain outside but with lavish interiors.
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【单选题】《危险货物分类和品名编号》（GB6944-2012）中Ⅱ类气体中的易燃气体，是指温度在20℃、标准大气压101.3kPa时，爆炸下限≤13%，或燃烧范围不小于（）的气体。
A.
10个百分点
B.
12个百分点
C.
13个百分点
D.
20个百分点
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【单选题】某些畸形零件划线时,可用()一次划出图形
A.
样板
B.
划规
C.
高度尺
D.
角尺
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【单选题】巫术仪式说又被称为:
A.
康德-黑格尔理论
B.
席勒-斯宾塞理论
C.
罗金斯-格罗塞理论
D.
泰勒-弗雷泽理论
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【单选题】What kind of title will be granted to the Queen's eldest son in the UK from the day he is born?
A.
The Prince of Edinburgh.
B.
The Duke of Edinburgh.
C.
The Prince of the United Kingdom
D.
The Prince of Wales.
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【单选题】What's the topic about the Queen's broadcast?
A.
On War
B.
On Coronavirus
C.
On her family
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相关题目：
【简答题】请选出问句的合适答语 (     ) 1. Where are you from? (     ) 2. What's this? (     ) 3. Is the Queen's house big? A. I'm from China. B. It's a pen. C. Yes, it is．
查看完整题目与答案
【简答题】The Queen’s English is now sounding less upper-class, a scientific study of the Queen’s Christmas broadcasts had found. Researchers have studied each of her messages to the Commonwealth countries sinc...
查看完整题目与答案
【单选题】下列哪种行为在我国不能申请或重新申请车辆驾驶证。
A.
有过醉酒驾驶经历的。
B.
在公安机关有吸毒行为记录或解除强制隔离戒毒措施不满三年的。
C.
为吸毒人员提供吸毒场所及吸毒工具的
D.
种植过罂粟或大麻的。
查看完整题目与答案
【单选题】关于相位差的说法不正确的是( )。
A.
相位差是同频率正弦量的相位角之差
B.
相位差是同频率正弦量的初相角之差
C.
两个同频率的正弦量之间的相位差为常数，与计时的选择起点有关
D.
同频率的正弦量之间计算相位差时，其超前和滞后的角度不能大于 180 °
查看完整题目与答案
【单选题】What does the writer think of the interior and exterior of Queen Anne's Mansions?
A.
They were elegantly decorated both inside and outside.
B.
They were grim from the outside and had a modest decor inside.
C.
They were flashy from the street but nondescript. inside.
D.
They were plain outside but with lavish interiors.
查看完整题目与答案
【单选题】《危险货物分类和品名编号》（GB6944-2012）中Ⅱ类气体中的易燃气体，是指温度在20℃、标准大气压101.3kPa时，爆炸下限≤13%，或燃烧范围不小于（）的气体。
A.
10个百分点
B.
12个百分点
C.
13个百分点
D.
20个百分点
查看完整题目与答案
【单选题】某些畸形零件划线时,可用()一次划出图形
A.
样板
B.
划规
C.
高度尺
D.
角尺
查看完整题目与答案
【单选题】巫术仪式说又被称为:
A.
康德-黑格尔理论
B.
席勒-斯宾塞理论
C.
罗金斯-格罗塞理论
D.
泰勒-弗雷泽理论
查看完整题目与答案
【单选题】What kind of title will be granted to the Queen's eldest son in the UK from the day he is born?
A.
The Prince of Edinburgh.
B.
The Duke of Edinburgh.
C.
The Prince of the United Kingdom
D.
The Prince of Wales.
查看完整题目与答案
【单选题】What's the topic about the Queen's broadcast?
A.
On War
B.
On Coronavirus
C.
On her family
查看完整题目与答案