Be concentrated on my car

Be concentrated on my car 人作主语还是物做主语 be focused on be concentrated on With his attention ( ) on the film,the boy didn't notice his father leaving quietly.A.concentrating B.concentrated C.to concentrate D.to be concentrated concentrated concentrated ■Have the problems they have_____ been solved.A concentrated B,concentrating C concentrated on D.concentrating on 英语翻译For genetic markers to be useful in gene mapping studies their location in the genomemust be known.This allows markers to be selected covering the whole genomeevenly,or to be concentrated on targeted regions.The relation between the marke I'm ( )be on time. concentrate on作状语时,是用concentrating on还是concentrated on ? 英语翻译It concentrated on development ofbio mat for medical use that can be used in the hospitals rather than forcommon use according to the increasing public interest in alternative medicinefrom 1990.The biggest problem of alternativemedicine i 英语翻译The approximation (5) leads to the following bounds onthe average weighted squared error:This upper bound is tight because it would be achieved fora spectrum Fm that is concentrated entirely on the worstcasefrequency.In light of this tigh 请教一道Alevel化学题Compound X on reaction with hot concentrated sulphuric acid gave a mixture of three alkenes.What could X be?A.butan-2-olB.propan-2-olC.2-methylbutan-2-olD.2-methylpropan-2-ol求详解 concentrated是什么意思 concentrated sulfuric 翻译：She set aside everything else and concentrated on the task before her one choice questionhe smoked with concentration.he concentrated _____it.a.with b.on c.in d.for A stranger ____ his eyes on you just now.A.focusedB.fixedC.staredD.concentrated为啥选B? 英语翻译INFLUENCE OF C-SOURCES ON THE DENITRIFICATION RATE OF A HIGH-NITRATE CONCENTRATED INDUSTRIAL WASTEWATER.请问大侠怎么翻译.