A.只要……就…… B.只有……才……
①它们在树上做窝,摘果实,喝露水,________树被风刮得太厉害了,________到地上来。(_______)
②松鼠是十分警觉的,________有人触动一下它所在的大树,它们________从树上的窝里跑出来躲到树枝底下,或者逃到别的树上去。(_______)
③开花时,________仔细地在树丛里寻找,________能看到那些小花。(_______)
④雌蚊________听到雄蚊的召唤,________马上飞走了。(_______)
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