按农村集体经济统计报表制度的要求，农民家庭经营收入支出资料采用（）调查方法取得。
A.全面
B.抽样
C.重点
D.典型
参考答案：B
下列营养物质中，不能为人体生命活动提供能量的是
A．无机盐
B．蛋白质
C．糖类
D．脂肪
The boss________company I worked in two years ago has________in solving such kind of problem.
A．whose; many experiences
B．who; many experiences
C．whose; much experience
D．which; much experience
