母乳喂养的姿势有（）（）（）和（）等。
参考答案：摇篮式；橄榄球式；侧卧式；交叉式
—Are you pleased with what he has done?
—Not at all. It couldn’t be _______. Why didn’t he put more effort into his work?
A．any worse
B．much better
C．so bad
D．the best
《标准化手册》要求项目部安全防护用具、构配件、电器产品验收的组织者与参加人员分别是哪些人？
