世界粮食计划署每年提供____的世界粮食援助

    Liu Mei has a h____family. She lives w____．her grandparents and parents in Dantu. Her father is a doctor. He goes to work o____．foot every day. He is not very tall, b____．he is very strong. Her mother is a teacher. She goes to work by car. She often h____．her students at school. Liu Mei's grandparents stay at home. In the morning, they go t____．the park. In the afternoon, they d____． tea with their friends. In the e____,they watch TV .Liu Mei is a student in No.1Middle School. Her school is beautiful. There are many tall b____．there. She wants to s____everyone around her school. She likes it very much.

在下面的横线上填上＞、＜或＝.

5＋2＋4____14

如图所示，倾角为θ的斜面长为L，在顶端水平抛出一小球，小球刚好落在斜面的底端，那么，小球初速度v₀的大小为（   ）