在不稳定表土层中施工立井井筒,常用的施工方法有()。
A.冻结法
B.钻井法
C.沉井法
D.注浆法
E.帷幕法
参考答案:A, B
解析:
—What were you doing _____ it was raining?
—I was getting out of the library.[ ]
A. when
B. if
C. while
D. as
对冻僵患者的复温措施,不应包括()
A.38~42℃温水浸泡
B.<37℃温溶液静脉输入
C.火烤或以雪摩擦
D.给予姜糖茶、热饮料
E.饮少量酒