制附子中具有强心作用的成分主要是
A、四氢巴马汀C
暂无解析
Hewasspecificallyaskedtowriteaplaythatwouldbe________tothelocalcommunity.
_______thatthescientistwillgiveusatalknextmonth?
重写句子：Weslippedontheroadwhenwecouldseenolightsintheheavyrainthatnight.(periodicsentence)
Duringthepasttwodecades,researchhas________ourknowledgeofdaydreaming.
Thedoctorsare________abouttheguidelinesunderwhichtheycancarryouteuthanasia.
