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【单选题】
清明节前两天为寒食节。相传约在春秋时期,人们为纪念介子推而禁火寒食,因此有了寒食节。由于两者只相差一天,至( )两节日合并称为清明寒食节。A.
唐代
B.
汉代
C.
秦代
D.
宋代
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A.
which
B.
where
C.
when
【简答题】词中哪句话集中表现了作者和恋人离别时的心情?
【简答题】词中哪句话集中表现了作者和恋人离别的心情呢?
【单选题】听力原文：W: Bob, would you please come in for a while? Please also bring along the minutes of yesterday's management meeting. M: Of course, Madame. Here is the minutes of the meeting. The meeting was dela...
A.
He is a manager.
B.
He is a clerk.
C.
He is a secretary.
D.
He is a chairman.
【简答题】三极管的内部结构 三个区 有 发射区 、 基 区 和 区 。
【单选题】某哺乳动物的一个初级精母细胞经过减数分裂后产生了染色体数目全部不正常的配子 , 最可能的原因是 ( )
A.
. 该细胞减数第一次分裂时 , 有一对同源染色体不发生分离 ; 减数第二次分裂正常
B.
. 该细胞减数第一次分裂时 , 四分体中的非姐妹染色单体交叉互换 ; 减数第二次分裂正常
C.
该细胞减数第一次分裂正常 , 减数第二次分裂时 , 一个次级精母细胞分裂正常 , 另一个分裂不正常
D.
C . 该细胞减数第一次分裂正常 , 减数第二次分裂时 , 一个次级精母细胞分裂正常 , 另一个分裂不正常
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【单选题】听力原文：W: It's fantastic to meet you here, John. I'm also your fan. M: Thank you. W: Before we start the interview, could you please sign my favourite CD for me? M: My pleasure. W: Tons of thanks. All t...
A.
Rock allowed him much freedom.
B.
Rock didn't treat him as a money machine.
C.
Rock cooperated with him with great sincerity.
D.
Rock didn't ask him to do much for promotions.
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