目前，我国企业产品平均合格率只有70%，不良产品造成的损失每年近2 000亿元。技术工人特别是高级技术工人短缺，已成为制约我国经济发展的一个瓶颈。2009年12月21日，******在广东珠海市高级技工学校考察时语重心长地指出，没有一流的技工，就没有一流的产品。加快培养数量庞大的高技能专门人才和高素质劳动者(　　)
①是加快转变经济发展方式、推进产业结构优化升级的必然选择　
②是提高企业自主创新能力与核心竞争力的客观要求　
③关系到我国劳动者就业问题的解决和国际贸易收支的平衡　
④关系到企业产品的市场竞争力和企业生产目的的实现

I can't find my purse. I___________ it in the supermarket yesterday, but I'm not sure.

某校八年级共有800名学生，准备调查他们对“低碳”知识的了解程度．

甲、乙、丙三种固体物质的溶解度曲线如图所示．下列说法不正确的是（   ）

根据表格内容完成下面的短文，每空词数不限。

Scott's Sunday
8:00 a.m.	get up
9:00 a.m. — 12:00 p.m.	read books or listen to music
12:00 p.m. — 2:00 p.m.	have a big lunch
3:00 p.m. — 5:00 p.m.	play sports
6:00 p.m. — 8:00 p.m.	watch TV
9:00 p.m.	take a shower and go to bed

    Scott doesn't go to work on Sunday. On Sunday morning, he usually gets up late. He gets up at ____. After breakfast, he usually reads books or listens to music for ____. After that, he often ____ with his friends. In the afternoon, Scott ____ from 3:00 to 5:00. The Sunday evening is relaxing for Scott. He usually ____. Scott needs a good sleep. So he ____ and goes to bed at ____.