38 By saying “ Bear in mind that undetectable does not equal absent”,Ho mea...

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问题
38 By saying “ Bear in mind that undetectable does not equal absent”,Ho means that

选项 A AIDS virus may exist in the blood without being detected.
B AIDS virus is undetectable in the blood.
C no AIDS virus can be detected in the blood.
D no virus found in the b丨ood means no AIDS.

答案A

解析“要记住,没发现不等于没有”与“可能实际存在但没被发现而已”是词一个意思 两种不同的表达方法。其他选项均不符合原意。
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