题目内容

[A] upon
[B] over
[C] to
[D] from

查看答案

搜索结果不匹配？点我反馈

更多问题

What does the news item mainly about？
[A] The happenings on the share and currency markets.
[B] The relations between US, Germany and Japan.
[C] The London's share index.
[D] The Asian and Western relation.

5．病毒的遗传因子可包括1～300个基因。与生命有机体不同，病毒的遗传因子可能是DNA或RNA，(但不可能同时兼有!)因此DNA不是完全通用的遗传物质。

8．C₀t_1/2与基因组复杂性相关。

[A] strengthen
[B] accommodate .
[C] stimulate
[D] enhance