石油化工设备维护检修必须遵守的技术标准是（）。
A.石油化工设备维护检修规程
B.GB 12337
C.GB 151
D.GB 5656
参考答案：C
I call him ________, even there is not much to say.[ ]
A. now and then
B. by and by
C. step by step
D. more or less
盗匪片
