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【单选题】
根据人类基因组 DNA 序列分析,人类基因组中大约包含( )个结构基因。
A.
0.5-1 万
B.
2-2.5 万
C.
4-5 万
D.
6-7 万
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Passage Two In 1997, devotees of home electronics eagerly awaited the DVD player, a new device that could play movies without videotape, and with greater clarity. It caught on even faste...
A.
die economic realities of its practicality
B.
robust economic growth
C.
economic problems of hi-tech companies
D.
ignorance of the technology