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【简答题】
如图所示，某超市在一楼至二楼之间装有电梯，天花板与地面平行，请你根据图中数据计算并回答：身高1.78米，她乘电梯会有碰头危险吗？身高2.29米，他乘电梯会有碰头危险吗？（可能用到的参考数值：sin27°≈0.45，cos27°≈0.89，tan27°≈0.51）
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皮皮学刷刷变学霸
举一反三
【单选题】What is the Protocol Data Unit (PDU) employed at the Data Link Layer?
A.
Bits
B.
Frames
C.
Packets
D.
Segments
【简答题】简述医师的权利。
【单选题】Americans eat______as they actually need every day.
A.
twice as much protein
B.
twice protein as much
C.
twice protein as much
D.
protein as twice much
【单选题】根据《邮政信息网全国中心用户和密码管理办法（试行）》规定，安全等级为（）以上（含该等级）信息系统的核心设备的管理员用户密码必须双人管理，共同实施密码的变更与销毁，每人只掌握部分密码。
A.
一级
B.
二级
C.
三级
D.
四级
【单选题】管理员将为当前数据中心创建一个冗余环境。如果整个数据中心站点不可用,则备份站点必须可用。为了减少成本,该备份站点不需要始终启用或持续运行以准备进行故障转移。它必须包含设备,并且能够从数据中心还原数据。应考虑使用以下哪种站点来满足这些要求?
A.
热站点
B.
暖站点
C.
冷站点
D.
主动故障转移站点
【单选题】What is the protocol in France concerning calling cards?
A.
At least 40 calling cards should be prepared a day.
B.
Academic credential should be listed.
C.
One side of the calling card should be written in English.
D.
Visitors should present their calling cards immediately.
【简答题】简述医师的权利有哪些?
【单选题】Now the Chinese eat as they actually need every day.
A.
twice as much protein
B.
twice protein as much
C.
protein as twice much
D.
protein twice as much
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