单选题 According to some scientists, the computer will do much harm to people''s health as smoking and drugs do.

A、 does much harm ... smoking
B、 will do as much harm ... cigarettes
C、 will be doing as much harm ... smoking
D、 does as much harm ... cigarettes

【正确答案】 B

【答案解析】结构应用。此句是一个带有原级比较as…as的句型结构，比较结构后面的as是连接词，不是副词；前一个空白处的比较成分中应有从属连词as，第二个空白处应填入一个和drug词性相同的成分；因此选项A和C均不对；又因“计算机对人类健康带来危害”是科学家的推测，不是既定事实，因此用一般将来时，所以选项D也不对。