血竭的石油醚提取液加新配制的 0.5%醋酸銅溶液，振搖后靜置分層，石油醚層不得顯綠色，是檢查
A、血竭素暫無解析
Insomeschoolschildrenwhoprefertoreadbooksratherthan________footballbecomesocialoutcasts(被拋棄者).
Theboyranoutoftheclassroomwithouttheteacher's_______.
Forthenewcountrytosurvive,________foritspeopletoenjoyprosperity,neweconomicpolicieswillberequired.
Theterriblenoiseis______memad.
若函數在x=0處連續，則（）
