小猴聪聪和小熊笨笨一起玩皮球。一不_______心,皮球滚进树洞_______了。小熊笨笨急得伸出胖胖的熊掌去捡皮球,可树洞很深,它够不着。小猴聪聪想了想,拿着水桶去小河边提来许_______,往树洞里灌水,哈哈!皮球浮上来了!
1.在文中“_______”里填生字。2.最后是用谁的办法捡回了皮球?
3.小猴聪聪想出的办法是什么?用波浪线在文中标出来。
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2