从“神一”到“神八”，再到“天宫一号”在我国载人航天试验的过程中，直接参加的单位有200多个，涉及到的单位近4000家，参加试验的工程科技人员超过15万人。这说明

题干

A：实践具有社会性的特点

B：实践是客观的物质性活动

C：实践是人类特有的活动

D：实践是能动地改造主客观世界的活动

上一题下一题 0.0难度选择题更新时间:2018-11-13 09:32:25

A

This Sunday is grandpa's birthday. The Smith family are going to celebrate it at home, so they will have a busy weekend.

Saturday
Morning	Dad-clean the car in the garden Mum-clean the kitchen and bedrooms of their house Amy-have dance lessons in the gym Rose--work on science projects in the library
Afternoon	Mum and Dad-buy some food at the supermarket Amy and Rose-choose gifts and cards for grandpa
Evening	Watch TV together
Sunday
Morning		Mum---make a big birthday cake Amy and Rose-wrap grandpa's gifts
Afternoon		Amy-help Mum cook delicious food Rose-help Dad decorate the sitting room
Evening		Amy and Rose-give gifts to grandpa The whole family-have a party

根据表格所提供信息，从每小题所给的A、B、C三个选项中，选出一个最佳答案。