①有翅时,翅平叠于躯体上。②多数雌性的产卵器很显著,呈筒状或针状。③蟋蟀体形微扁,头部圆形,触角长、呈线状。④多数体色呈褐色或黑色,深浅不一。⑤雄虫利用位于前翅基部的脊产生求偶鸣声。
A.③①④⑤② | B.③④⑤①② |
C.③④⑤②① | D.③①⑤④② |
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