Allofusknow,color-blindpeopleoftenfinditdifficultto__betweenblueandgreen.
A、separateB
暂无解析
Thepresentsituationforcedusto____thispolicy.
Pollisanexampleofaseverelydisabledpersonwhohasbecome______atmanysurvivalskills.
Withonelegbrokeninthatcaraccident,hecannotevenwalk,____run.
Theradiois________astrangesignal.What’swrongwithit?
Howlonghaveyou____?
