【单选题】The author writes of the development of geology to demonstrate _______.
A.
the process of specialisation and professionalisation
B.
the hardship of amateurs in scientific study
C.
the change of policies in scientific publications
D.
the discrimination of professionals against amateurs
【简答题】compensation trade agreement
【简答题】What is compensation trade?
【简答题】Processing and assembling trade include assembling with ______ and processing with ______ and processing with customer's draft and samples.
【单选题】机械员专业能力测试包括( )测试,重点考查运用相关专业知识和专业技能解决工程实际问题的能力。