题目

Outdoor Science Field Trips!【1】Which trip caters for more age groups than all the others?A. Habitat & Home B. Only Rain Down the DrainC. healthy earth healthy bodies D. Rockin’and Recycling【2】What will you learn from Only Rain Down the Drain?A. Information about weather. B. Knowledge about water systems.C. Grade specific science standards. D. Stories about Sonoma County.【3】Which trip should you choose if you want to learn to forecast the weather?A. Habitat & Home B. Only Rain Down the DrainC. Rockin’and Recycling D. Weather or not甲、乙二人从底楼（第一层）开始比赛爬楼梯（每两层之间楼梯的级数相同）甲跑到第4层时，乙恰好到第3层，照这样的速度，甲跑到第16层时，乙跑到_____层．A.9B.10C.11D.12