The parasympathetic innervation of the heart originates in the medulla oblongata.支配心脏的副交感神经发源于延髓的迷走神经核.While this is commonly agreed upon, the vagal innervation of idioventricular pacemakers is not.这点是人所公认的, 而心室自身起撑点的迷走神...
Two main glacial epochs affected both areas during the last 100 million years of Precambrian times.在前寒武纪的最后1亿年中，两个主要的冰川时期对两个地区都产生了影响。Great men, like great epochs, are explosive material in whom tremendous energy has been...
My refusing to eat flesh occasioned an inconvenience, and I was frequently chid for my singularity.我不吃肉,带来种种不便, 于是常因这种怪癖受到责备.It's no inconvenience to drive you to the station.开车送你去车站一点也不麻烦.We apologize for any incon...