阅读材料,回答问题.
青藏高原有一种叫蝙蝠蛾的昆虫和一种虫草菌.在蛾幼虫冬眠时,虫草菌的孢子会随风飘到幼虫体表,并钻入 幼虫体内,吸收幼虫体内的营养而快速繁殖.菌丝在虫体内经过几个月的慢慢成长,充满虫体,幼虫只剩外骨骼,就是“冬虫”.隔年夏季,菌丝体会从死亡虫体的 头部长出,像草一般,称为“夏草”.这就是冬虫夏草的名字的.
交通法规定,乘坐汽车时,乘客必须系好安全带.这是为了汽车突然减速,乘客由于 ____,身体向前倾倒而造成伤害.假如正在行驶的汽车所受的力全部消失,汽车将会处于 ____状态.(选填“静止”、“匀速运动”、“加速运动”或“减速运动”)
—I can help you.
—Oh, that's great! Thanks so much.
—_____________.
如图为一个圆柱中挖去两个完全相同的圆锥而形成的几何体的三视图,则该几何体的体积为( )
Yesterday,Amy and Mary went to the zoo by bike. They saw pandas, lions, monkeys and elephants. They were very happy. They were thirsty, so they bought a watermelon. Amy carried the watermelon on her bike. But it fell off her bike and bumped her foot(脚).