采用拌和法为下封层铺筑时,宜采用AC-5(或LH-5)砂粒式沥青混凝土,厚度宜为( )cm。
A.4
B.1
C.2
D.3
参考答案:B
People greatly differ ( ) their view of life.
A. formB. inC. atD. to
光伏发电站低电压穿越的最低电压要求为()。
A.0%Un
B.5%Un
C.10%Un
D.20%Un