中华人民共和国统计局曾抽样调查了农民家庭平均占有生产资料情况(含所有权和使用权)。据下表判断,项调查的时间大致在( )
A:土地改革开始前
B:人民公社化运动普遍展开后
C:农业合作化运动开始前
D:家庭联产承包责任制推广后
月球的沙土中含有丰富钛铁矿,主要成分为TiO2、Fe2O3等,若用CO还原这种矿石,其中生成铁的化学方程式为:____ ;用稀盐酸清洗铁钉表面的铁锈(主要成分是Fe2O3),其化学方程式为:____ ,该反应的反应类型是____反应.
根据材料,选择正确答案。
In Sunshine Town if you want to go to the cinema or theatre, look at the following first.
Sunshine Theatre (PLAYS ONLY)
Open: 11:30 a.m.-7:30 p.m. from Monday to Sunday
Ticket price: Member price:¥30 Usual price:¥40 Student:¥15
Telephone: 010-6697 3219
Sunshine Cinema
Open: 9:00 a.m.-8:00 p.m. Monday to Sunday
Ticket price:¥40 (half price on Tuesday)
Telephone: 010-6699 9977; 010-6699 6644
Sunshine Modern Cinema
Open: 10:30 a.m.-11:30 p.m. from Monday to Friday
10:00 a.m.-11:30 p.m. Saturday and Sunday
Ticket price: Adults:¥50 Children (under 14):¥10
The old (over 60):¥20 The young (15-18):¥20
Telephone: 010-6699 3834