混凝土小型空心砌块的空心率应不小于砌块毛体积的（）
A、10%
B、15%
C、20%
D、25%
参考答案：D
其治法则为
A．清利湿热，排石通淋B．清热利湿通淋C．理气疏导，通淋利尿D．清热通淋，凉血止血E．宣肺利水
32．Peter was sure that he drank any more of this good red wine he would fall asleep.
A．if
B．when
C．as
D．Since
