下列差错哪些属于规范类差错().
A.未打印核实行;
B.自制凭证不全;
C.自制凭证填写摘要不清、不详;
D.自制凭证不洁、不清、字迹模糊无法核对
参考答案:A, C, D
下图为眼球的结构图,请据图回答问题:
(1)你能看到远处有一棵树,是因为它反射的光线形成的物像落在__________上,这个信息通过视神经,传到______________,而形成视觉。
(2)猫能通过调节______________大小,使自己在明处和暗处都能看清物体。
(3)人能看清楚远近不同的物体,是因为___________的曲度可以调节。
Frapping lines are fitted to lifeboat davits to().
A.reduce the swinging of the lifeboat as it is being lowered from the embarkation level
B.secure the lifeboat in the davits when in the stowed position
C.hold the lifeboat to the ship's side until the tricing lines are passed
D.be used as a safety line in an emergency