选择词语补充完整。
藤上 树上 水里 天上 游 结 挂 飞
小枣在____
小鸭子在____
葫芦在____
小鸟在____
根据短文理解，选择正确答案。
Attention, Students! Beach Party Comes!
We will hold an outdoor party in Fulong on July 10.
Activities
1). Bike riding or hiking from the Student Centre to the beach
2). A cookout (野炊) on the beach
3). Swimming and sailing competitions
You should bring
sun cream, sunglasses, hats, swimsuits, hiking shoes, and personal items
Deadline
(最后期限)
for signing up
Friday, June 28
Fee
$300 per person(每人)
Meet at the Student Centre at 9:30 am, July 10.
轿车的加速度变化快慢将影响乘坐的舒适度．加速度变化得越慢，乘坐轿车的人会感到越舒适．若引入一个新物理量用于表示加速度变化的快慢，则该物理量的单位应是（ ）
____的小花 ____的草地 ____的雨点
____的雨点 ____的色彩 ____的阳光
