From this passage one can conclude that __
A.doctors are still learning things about eyesight B.headaches are only caused by eyestrain C.everyone should wear glasses D.people only believe things that are proven facts正确答案A
From this passage one can conclude that __
A.doctors are still learning things about eyesight B.headaches are only caused by eyestrain C.everyone should wear glasses D.people only believe things that are proven facts正确答案A
