什么叫温标?
参考答案:
温标是衡量物质温度的标尺。
Bats are surprisingly long-lived creatures, some ______ a life span of around 20 years.
A. having B. had C. have D. to have
肾盂癌最常见症状是
A.高血压
B.腰部包块
C.肾绞痛并有血尿
D.间歇无痛性血尿
E.精索静脉曲张