胆固醇约占支原体细胞膜成分的()
A.20%
B.26%
C.30%
D.36%
E.100%
参考答案:D
Aunt Li ________ the babies very well while their parents were away. [ ]
A. looked at
B. looked like
C. looked up
D. looked after
下列有关餐饮部与其他部门业务关系表述正确的有:()
A、餐饮部为前厅部提供大型餐饮活动计划以便客人查询。
B、餐饮部根据销售部的信息反馈制定年度和临时的推销计划和促销安排。
C、采购部根据餐饮部的要求采购新设备、新原料和时令菜。
D、工程部协助餐饮部培训员工正确使用机器设备