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参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...
A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.
【单选题】单选 在静止油液中( )
A.
油液的内部压力不能传递动力
B.
油液的压力方向不一定垂直指向承压表面
C.
当一处受到压力作用时，将通过油液将此压力传递到各点，且其值不变
D.
任意一点所受到的各个方向的压力不相等