LNG卸料臂用露点（）的氮气进行气密性检测。 ["0℃","-5℃","-10℃","-40℃"]
在竞争性的运输市场上，当运输的需求为弹性需求且资源不足时，应该采用（）。 ["平价措施","差别定价","提价措施","降价措施"]
The exhaust pipe must be gas tight throughout its entire length otherwise（）. ["bilge water may enter the exhaust pipe","entry of air may cause vapor lock","carbon monoxide may enter the interior of the vessel","the joint gaskets may be blow"]
货方要求改变原指定的卸货港口，在有关当局准许、船方又同意的情况下可加收的费用是（）。 ["变更卸货附加费","选港附加费","绕航附加费","港口附加费"]
詹森指数、特雷诺指数、夏普比率以（）为基础。 ["马柯维茨模型","资本资产定价模型","套利模型","因素模型"]
《孟子》散文的艺术成就体现于哪几个方面？
