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【多选题】
Which of the following events are related to the Yuan Dynasty?A.
Built the Great Wall around Beijing
B.
Marco Polo came to China and became an official
C.
The territory of the Yuan Dynasty reached the present Europe
D.
The rulers of the Yuan Dynasty were Mongolians
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【简答题】在CDT循环式远动规约中，为什么遥信变位的传送采用信息字插入方式？
【单选题】Column A Column B 23×784 24×783
A.
if the quantity in Column A is greater
B.
if the quantity in Column B is greater
C.
if the two quantity are equal
D.
if the relationship cannot be determined from the information given
【简答题】__________ [A] quality [B] quantity [C] nature [D] aura