防水混凝土
参考答案:
是在普通混凝土骨料级配的基础上,以调整和控制配合比的方法,提高自身密实度和抗渗性的一种混凝土。
患者右眼怕光流泪1周,检查所见:黑睛见一灰白色病灶,四周凸起,如花瓣状,抱轮红赤。舌质红苔薄黄,脉数。已确诊为"花翳白陷"。
首选的方剂是()
A.龙胆泻肝汤
B.泻肝散
C.银翘散
D.加味修肝散
E.泻白散
On a certain road, 10 percent of the motorists exceed the posted speed limit and receive speeding tickets, but 20 percent of the motorists who exceed the posted speed limit do not receive speeding tickets. What percent of the motorists on that road exceed the posted speed limit ?()
A.A
B.B
C.C
D.D
E.E