题型:名词解释 She didn't ask her boyfriend to buy her a car. ____________, she bought one for him. [ ]A. That is B. On the contrary C. To be honest D. Generally speaking 查看答案
题型:名词解释 赘生物常位于血流从高压腔经病变瓣口或先天缺损至低压腔产生高速射流和湍流的下游,如二尖瓣关闭不全的________,主动脉瓣关闭不全的________和室间隔缺损的间隔________。 查看答案