题型:句型转换 句型转换。1. The girl is probably Jim's sister.(同义句转换)The girl _____ _____ Jim's sister.2. The highest mountain Qomolangma is on the border of China and Nepal.(对画线部分提问) _____ _____the highest mountain Qomolangma? 查看答案
题型:单项选择题 心房收缩期在心血管生理上的意义()A.心房的血液因心房收缩,最终全部被充盈到左心室B.左心房收缩引起左心室收缩C.心房收缩期引起心室的快速充盈D.心房收缩是舒张期的开始E.心房收缩期是左心室射血的终结 查看答案