下载APP
举一反三
【单选题】关于魏氏法测定血沉，正确描述的是()
A.
枸橼酸钠按1:9比例抗凝血液
B.
需用专用的魏氏血沉管，内径为2.5mm
C.
室温25℃测定结果需进行温度校正
D.
应于37℃条件下测定
E.
血沉管用后经水冲洗即可再次使用
【单选题】乐谱中开头处的3/4代表的含义是（）
A.
以四分音符为一拍，每小节四拍
B.
以四分音符为一拍，每小节二拍
C.
以二分音符为一拍，每小节三拍
D.
以四分音符为一拍，每小节三拍
【单选题】TEXT C Material culture refers to the touchable, material "things"--physical objects that can be seen, held, felt, used--that a culture produces. Examining a culture’s tools and technology can tell us...
A.
it has a great effect on the music-culture as more and more people are able to read it
B.
it tends to standardize folk songs when it is used by folk musicians
C.
it is the printed version of standardized folk music
D.
it encourages people to popularize printed versions of songs