Can she ____ Chinese now? [ ]
A. say
B. tell
C. speak
答案:C
尿白细胞一小时计数法阳性标准是多少万每小时()
A.1~3
B.3~10
C.10~20
D.20~40
E.>40
简述按索赔事件性质分类的施工索赔类型。