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【判断题】
人的基因组中转座子大约占45%，主要是反转录转座子 (Transposons account for about 45% in human genome, mainly retrotransposons.)
A.
正确
B.
错误
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