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 （）.

（）are liable to be stoten, pilfered or may damaged due to improper handing or stowage.

学前儿童心理学是研究（）儿童心理发展规律的科学。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

简述学前儿童动作发展规律。

学前儿童先会走、跑，后会灵活地使用剪刀，这说明儿童动作发展是有（）规律。

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

实施学前儿童社会领域教育，首先要根据幼儿心理发展水平、特点和规律，确定符合幼儿实际发展水平和未来发展需要的不同阶段和不同层次的（），确保每一个幼儿的社会化水平得到充分发展。