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The causes of most disease, parasites such as viruses, bacteria, and fungi, all
The causes of most disease, parasites such as viruses, bacteria, and fungi, all
游客
2025-02-04
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问题
The causes of most disease, parasites such as viruses, bacteria, and fungi, all specialize in breaking into cells, either to eat them, as fungi and bacteria do, or, like viruses, to subvert their genetic machinery for the purpose of making new viruses. Either way, parasites must get into cells. To do that, they employ protein molecules that bind to other molecules on cell surfaces. The struggle between parasites and their hosts is all about these binding procedures. [br] The word they in the passage refers to
选项
A、parasites
B、viruses
C、cells
D、molecules
答案
A
解析
The subject of the previous sentence is parasites. Logic tells you that the subject pronoun they refers to parasites.
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