寒邪的性质和致病特点是()
A.易伤阳气
B.重浊，黏滞
C.易于伤肺
D.病难速愈
E.以上均非
参考答案：A
—My car has broken down. Would you please send someone to ______?
—Ok, my driver will soon be with you. [ ]
A. put me up
B. pick me up
C. drop me off
D. turn me up
水泥搅拌桩施工完成（）天后，进行质量检验，静载试验、抽芯检验频率必须符合设计及规范要求。
A.15
B.20
C.28
D.30
