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【单选题】
平安時代の初期、漢字の読み方や注釈などを書き加えるための文字として、____が考え出された。A.
平仮名
B.
片仮名
C.
漢字
D.
音読み
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皮皮学刷刷变学霸
举一反三
【单选题】听力原文： Americans eat breakfast and lunch quickly unless it is a social, business or family occasion. The evening meal is usually longer and a time for families to gather together. Rushing through dayti...
A.
When the food is too hot.
B.
When they enjoy the food.
C.
When there is no one waiting.
D.
When they are eating with their families
【单选题】听力原文：Americans eat breakfast and lunch quickly unless it is a social business or family occasion. The evening meal is usually longer and a time for families to gather together. Rushing through daytime...
A.
Where Americans eat.
B.
What time Americans eat dinner.
C.
Why Americans eat in a hurry.
【简答题】从效率的观点来看,机械的自锁条件是____________________。
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