The best title for the passage is______.
A.Many People Killed by Miniscule Particles in UK
B.A Six-week Consultation Launched by Defra
C.Air Pollution Monitoring Stations Face Closure
D.Giant Changes Made to Improve Air Quality in UK
Two substitutes were used in a fierce soccer game last night. The underlined part means______.
A.atheletes
B.judges
C.replacements
D.coaches
The man was seen______heavily to the ground and never get up again.
A.falling
B.fallen
C.to fall
D.fall
健康教育的研究对象是(),手段是传播、教育和()。
骨折后多长时间可在X线片始见骨质愈合现象()
A.成人约3-6个月后
B.成人约6-12个月后
C.儿童约2个月左右
D.女性约2个月以后
E.男性约2个月以后