堤防工程相邻施工段的作业面宜均衡上升,段间出现高差,应以斜坡面相接,结合坡度为( )。
A.1:2~1:3
B.1:3~1:4
C.1:3~1:5
D.1:2~1:4
参考答案:C
If the area of a square with sides of length 8 centimeters is equal to the area of a rectangle with a width of 4 centimeters, what is the length of the rectangle, in centimeters ?()
A. 4
B. 8
C. 12
D. 16
E. 18
患者,女,35岁,已婚。1年来月经后期,40~50天一行,量少、色黯、时有血块,小腹较胀、 * * 胀痛,舌略暗苔薄,脉弦。其证候是
A.血寒B.血虚C.肾虚D.气滞E.血瘀