体壁有外环形肌和内纵行肌.The body wall has outer circular and inner longitudinal muscles.用伊红和 马洛赖氏 三色法染色可见体壁尤其在腹壁的折叠处及膜翅壁中存在着胶原纤维.There are collagenous fiber in integument especially integument and the hymenopterous integument disco...
For years, from newspapers, broadcasts, the stages and at meetings , we had heard nothing but grandiloquent rhetoric delivered with shouts and shrieks that deafened the ears.多少年来, 报纸上, 广播里, 舞台上,会场上的声嘶力竭, 装腔做态的高调搞得我们震耳欲聋....
动物学家把螺蛳归入甲壳类.Zoologists refer barnacles to Crustanceans.卢布克爵士最近指出, 小型甲壳类中有几种较好的例子,可作为这一法则的说明.Sir. J . Lubbock has recently remarked , that several minute crustaceans offer excellent illustration of this law.它们吃其他的鱼类 、 甲壳...