一定时间内客户购买某商品的数量对其对该类产品或服务全部需求的比例，称为（）。
参考答案：客户需求满足率
Can you think _____? [ ]
A. what is his job
B. what does his job
C. what his job does
D. what his job is
影响胎儿发育的母亲因素，下列错误的是（）
A.营养
B.疾病
C.情绪
D.气质
E.环境
