—Is your sister singing?

—Yes. That's her favourite         .

近年来，中国通过原始创新、集成创新和引进消化吸收再创新，取得了一系列重大技术创新成果，形成了具有世界领先水平的高速铁路技术体系。今天，中国已步入高铁时代，并正在成为高铁技术输出国。中国高铁的发展历程表明(    )
①创新就是对既往的否定和对现实的肯定 ②创新的过程是一个“扬弃”的过程
③创新推动科技进步和社会生产力发展   ④创新推动生产关系和人类思维的变革

新中国成立后，有计划地开展经济建设是我国社会主义事业的有力保障。下列选项中属于“一五”计划基本任务的是（    ）

①集中力量发展重工业，建立国家工业化和国防现代化的初步基础 ②相应发展交通运输业、轻工业、农业和商业 ③相应地培养建设人才

阅读短文并选择
    Miss Lee is 21 years old. She likes students and her work. From Monday to Friday she stays at school and gives the students lessons. She has much work to do, but she often plays games with her students after school. On Sundays, she drives to her parents' home and stays with them. Sometimes she goes to see her friends on Sundays. She drives back to school on Monday morning. She's a good girl.

在电视天气预报节目的卫星云图上，白色表示（  ）