下列属于油基修井液的是（）。
A、空气钻井液
B、改性钻井液
C、天然气钻井液
D、油包水乳化钻井液
参考答案：D
---_________ film do you prefer, Lost in Thailand or Life of Pi, Madee?
---Lost in Thailand. I like comedies because they often make me laugh.
A．What
B．Whatever
C．whose
D．Which
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