该新生儿的开乳时间是( ) A. 出生后12小时喂母乳 B. 出生后8小时喂母乳 C. 出生后6小时喂母乳 D. 出生后4小时喂母乳 E. 出生后即可喂母乳 参考答案:E
第6题:[单选题]What will take place when pressure and temperature is too low to supply corresponding bleed valve? A. IP valve is closed B. HP valve is on, medium-pressure is closed C. HP valve is on, medium-pressure keeps at the same form 参考答案:C