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【简答题】
把110 V的交流电压加在55Ω的电阻上,则电阻上电压Um=____V,电流I=____A。
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【单选题】关于匙状甲的叙述，下列哪项是错误的
A.
又称反甲
B.
其特点为末端指节明显增宽、增厚
C.
其特点为指甲中央凹陷，边缘翘起
D.
指甲变薄，表面粗糙，干脆有条纹
E.
常为组织缺铁或某些氨基酸代谢紊乱所致营养障碍
【单选题】关于匙状甲的叙述,下列哪项是错误的?( )
A.
又称反甲
B.
其特点为末端指节明显增宽、增厚
C.
其特点为指甲中央凹陷，边缘翘起
D.
指甲变薄，表面粗糙有条纹
E.
常为组织缺铁或某些氨基酸代谢紊乱所致营养障碍
【单选题】This passage tells us ______.
A.
it was the Panama Canal that made the country independent
B.
It's nearly a century since Panama declared its independence
C.
Panama was named by Columbus
D.
Colombia used to be a state of the United States
【简答题】ships sized to get through the Suez C are called ( ),and those sized to get through the Panama C are called ( ).
【单选题】The Panama Canal was built by a ( ) consortium.
A.
America
B.
Italy
C.
Britain
D.
France
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