试述如何根据青少年思维的发展特点，在教学实践中提高学生的思维能力。

青少年思维能力发展的基本特点是，到少年期基本上可以掌握辩证思维。

简述学前儿童思维发展的一般特点。

简述5～6岁儿童心理发展的主要特征。　　相关试题：联系实际谈谈5～6岁儿童心理发展的主要特点。

学前儿童发展心理学是儿童发展心理学的分支学科。

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。