细分散钻井液是通过使用(),同时加入简单有机处理剂改善其性能。
A、化学分散剂
B、絮凝剂
C、起泡剂
D、原油
参考答案:A
以上属于肌间隔血管皮瓣的是()
A.胸大肌皮瓣
B.胸三角皮瓣
C.前臂皮瓣
D.上臂内侧皮瓣
E.管状皮瓣
An epigram is usually defined being a bright or witty thought that is tersely and ingeniously expressed.
A.as
B.as be
C.as been
D.to being