使用易燃易爆的化学药品，不正确的操作是（）
A、可以用明火加热A
暂无解析
BeforetheSmithsmovedtoNewYork,theylivedinaquiet___(neighbor)ofBoston.
I'dappreciateitverymuchifyoucouldmakesome________onmyrecentarticleattheconference.
Ithoughtherrequestforfinancialaidwas___(reason),butsomehowitwasrefused.
TheUnitedStatesisacountry_(advance)inscienceandtechnology
Roundthecornerwasabuilding_____windowswereallbroken.
