24. For centuries, people struggled with tuberculosis, not knowing its cause or treatment. Cures were discovered in the 1940s and 1950s, but today’s often drug-resistant _______ have raised new public health concerns.
(A)diseases
(B)strains
(C)droplets
(D)genes

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統計: A(70), B(123), C(19), D(35), E(0) #200262

詳解 (共 4 筆)

#166146
drugresistant strain 耐藥性菌株 ......
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1
#332279

 tuberculosis 結核病
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0
#192109

droplet 小滴
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#436824

菌株好像太專有名詞,strain 的定義是品種或病毒

以下是 Yahoo 字典的定義:
http://tw.dictionary.yahoo.com/search?ei=UTF-8&p=strain

strain2n. (名詞 noun)
  1. (人的)血緣,世系;種,族[C]
她出身名門。
(動植物的)種,品種[C]
這種品種的小麥能在寒冷的春天生長。
氣質,(性格上的)傾向[U][S1][(+of)]曲子,旋律,歌;詩節,歌節[P]口吻,語氣;筆調;情調[C]
他用愉快的筆調寫信。

有了明確的定義,"a bad strain of virus" 就可以輕易的解說為「一種不好的病毒」。(或認為是一種人尚無抗體的病毒。)
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