幼儿家庭教育的手段主要有游戏、玩具、电视。

19世纪德国幼儿教育家（）专门为幼儿制作了一套玩具，并把这套玩具命名为“恩物”。

教育幼儿爱护玩具和其他物品、爱护物和公共环境是幼儿社会教育的重要内容。

在学前教育研究中，设计新型的幼儿教具和玩具、研制学前教育计算机软件属于（）。

教育结构有层次结构、平行结构、动态结构等。大学、中学、小学和幼儿园教育是教育的平行结构,各级教育都有年级层次结构,高等教育还有本科教育、研究生教育等动态、层次结构。( )

Every deliberate act of wrongdoing by the master or any of the crew against the ship or cargo，without the authorization or privity of the Shipowner or his agent，is（）.

（）, or drum is used for hauling in or letting out the wires or ropes which will fasten the ship to the shore.

A salvor may be（）the whole or part of the payment due under Salvage Convention to the extent that the salvage operations have become necessary or more difficult because of fault or neglect on his part or if the salvor has been guilty of fraud or other dishonest conduct.

The （） is used for hauling in or letting out the wires or ropes.

Vessels must be（）valid certificate of nationality or certificated of registry or license.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。