动压力和（）是油气二次运移的主要动力。
A、静压力
B、水压力
C、浮力
D、运动力
参考答案：C
试分析引起水泥石腐蚀的内因是什么？如何防止？
The slogan "scientific truth is a matter of social authority" has become dogma to many academic interest groups who have been ______ themselves to substitute their authority for that of the practicing scientists.
A. grudging B. exerting C. swarming D. detesting
