凡涉及安全、功能的有关产品,应按各专业工程质量验收规范规定()。
A.重点检查
B.进行复验
C.由建设单位提供
D.由专业检测机构检测
参考答案:B
鸟类和哺乳类是由哪一种动物进化而来的?( )
A.古代的两栖动物
B.近代的两栖动物
C.古代的爬行动物
D.近代的爬行动物
Each EPIRB required on a ship shall be stowed in a manner which will permit().
A.easy access to its storage compartment
B.replacement of the battery without exposure to the weather
C.it to float free if the unit sinks
D.it to remain attached to the unit