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【单选题】发行人和主承销商应当在发行公告中披露()。 1战略投资者的选择标准 2持有期限 3向战略投资者配售的股票金额 4向战略投资者配售的股票总量
A.
①②③
B.
①②④
C.
②③④
D.
①③④
【简答题】What is the characteristic of Industry 2.0 ?
A.
Its main features are the comprehensive use of the "physical system" and the "information system". Through the integration of the two, intelligent production can be achieved.
B.
Its main sign is the mechanized production brought by steam engines. Steam powered machines replace manpower. Since then, handicrafts have been separated from agriculture and formally evolved into industries.
C.
It is characterized by the widespread use of PLCs (Programmable Logic Controllers) and PCs (Personal Compu