打击乐器名。因系单面蒙皮，故名。也叫单皮鼓、小鼓。演奏时用两根细竹（通称鼓箭子、鼓签）敲打。是戏曲及民间吹打乐中的重要乐器。戏曲乐队打击乐和管弦乐中用以指挥其它乐器，演员歌唱时辅助板按节拍。
菲尔普斯打破施皮茨单届奥运7枚金牌的纪录后，美国必胜客公司将为他和他所在的美国游泳队免费提供一整年的比萨和意大利面。
Pizza Hut has offered Phelps and his entire team free pizza and pasta for a year after he broke Mark Spitz's record of 7 gold MEDALS in one Olympics.
目的：研究槲皮素单硫酸酯和5-氯- 5-脱氧腺苷合用对凝血酶诱导兔血小板聚集的影响。
Objective: To study the effects of combination of quercetin monosulfate and 5 'chloro 5' deoxyadenosine on platelet aggregation induced by thrombin in rabbits.
目的：研究槲皮素单硫酸酯钠盐(SQMS)对凝血酶诱导的猪血小板聚集的抑制作用。
AIM: to study the inhibitory effects of sodium quercetin monosulfate (SQMS) on pig platelet aggregation induced by thrombin.
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