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 （）.

The（）may examine or re-examine the goods or take samples from them straightaway in the absence of the consignee or the consignor whenever it considers this necessary.

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

Banks have no liability for any delay or loss caused by postal or telex failure.

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

案例：某校高一（2）班，学生40人，教学内容：蹲踞式跳远。教学目标：通过课堂教学，学生熟悉蹲踞式跳远的基本规则及动作技术。教学步骤：①上课。教师提问：蹲踞式跳远的要点，蹲踞式跳远分几个技术环节，如何让自己跳得更远？②教师讲解规范姿势的重要性：一是为了维持身体的平衡；二是为落地做积极的准备。③教师示范动作，学生观看并学习。④分组练习蹲踞式跳远。⑤教师巡视指导，纠正错误动作。⑥集合进行集体讲评。⑦小结，布置作业，宣布下课。根据上述材料，该教师是否能完成教学目标？为什么？

逻辑运算符（AND、NOT、OR）的运算顺序是AND→OR→NOT。

案例：某校高一（2）班，学生40人，教学内容：蹲踞式跳远。教学目标：通过课堂教学，学生熟悉蹲踞式跳远的基本规则及动作技术。教学步骤：①上课。教师提问：蹲踞式跳远的要点，蹲踞式跳远分几个技术环节，如何让自己跳得更远？②教师讲解规范姿势的重要性：一是为了维持身体的平衡；二是为落地做积极的准备。③教师示范动作，学生观看并学习。④分组练习蹲踞式跳远。⑤教师巡视指导，纠正错误动作。⑥集合进行集体讲评。⑦小结，布置作业，宣布下课。请根据材料指出该案例教学过程的优缺点。