球形红细胞无糖酵解较正常红细胞增加()
A.10%~40%
B.20%~30%
C.20%~40%
D.20%~50%
E.10%~30%
参考答案:B
— How long does it take to get there? —_______________
A.20 kilometers
B.3 miles
C.About a quarter
D.20 minutes’ walk
表格控件的列数由______属性指定,该属性的默认值为-1。