皮亚杰儿童教育的基本原则是：（1）教育要符合儿童心理发展阶段，符合儿童心理发展的水平，避免儿童教育成人化的倾向；（2）发展儿童的主动性；（3）强调儿童的实际活动；（4）重视儿童的社会交往。

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.

When loading or discharging dry mud or cement，crew members should use goggles and（）.

Effects which are dutiable or subject to prohibitions or restrictions should be declared in （）.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

儿童的心理发展有（），所以对儿童的教育应循序渐进。儿童的心理发展有（），所以对儿童的教育应因材施教。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

儿童文学作家包括成人和（），他们与成人文学作家一样，具备着文学创作的能力，并遵循着文学创作规律进行创作。