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A virus is harmful because______reproduces by killing the host cell.A、itB、it is
A virus is harmful because______reproduces by killing the host cell.A、itB、it is
游客
2025-02-04
47
管理
问题
A virus is harmful because______reproduces by killing the host cell.
选项
A、it
B、it is
C、can it
D、it can
答案
A
解析
The subordinate clause needs a subject; it is a subject pronoun.
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