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【单选题】
人类体细胞染色体的数目为:A.
23对常染色体,1对性染色体
B.
44对常染色体,1对性染色体
C.
44条常染色体,2条性染色体
D.
22对常染色体,1对Y染色体
E.
22对常染色体,1对X染色体
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【简答题】煤气初冷分几步进行？
【单选题】Li Ming told me that he was interested in many sports, ___swimming, shooting, skating and so on
A.
such as
B.
as
C.
for example
D.
such like
【简答题】Doctor Seuss was born in 1904. By the middle 1950s, he had become one of the best-loved and most successful children's book writers in the world. His books are very popular with young readers. They en...
【简答题】Doctor Seuss was born in 1904. By the middle 1950s, he had become one of the best-loved and most successful children’s book writers in the world. His books are very popular with young readers. They en...
【简答题】设 A 是数域 F 上的一个 n 阶矩阵,如果存在 F 上的一个 n 阶可逆矩阵 T ,使得 为对角矩阵,则称矩阵 A 可以对角化。
【简答题】Different people have different hobbies. We students alsohave our own hobbies, such as reading, painting, growing vegetables in ourgardens and looking after animals. 1 can make us grow, develop (发展) o...
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