被冻结井筒周围的冻结孔,在施工前的冻结叫()
A.积极冻结
B.消极冻结
C.恒定冻结
参考答案:A
下列哪首方剂是治疗气滞型癥瘕的代表方:
A.香棱丸
B.少腹逐瘀汤
C.血府逐瘀汤
D.桂枝茯苓丸
E.桃红四物汤
This Englishman is good at writing, reading and _____ is kind to others.
A.above all
B.first of all
C.in all
D.after all