【简答题】FX2N-48MR是F2N系列PLC的( )(基本单元,扩展单元),40表示其具有输入输出总点数为( )。
【判断题】为减少取样误差,取样时可以多取样,以保证样品的代表性。
【单选题】According to Paragraph 5, if we find some evidence of religious aspects of ancient societies, ______.
A.
the evidence can help us know the beliefs of past societies
B.
it will still be fairly difficult for us to understand the evidence
C.
we will be able to interpret the values and morals of early people
D.
we can explain beliefs with the help of some material objects
【单选题】The tourist attraction is so designed to________our local customs and cultures in some aspects.
【判断题】为减少取样误差,取样时可以多取样,以保证试样的代表性。( )
【单选题】“制造费用”账户按用途和结构分类属于( )
【判断题】代理报检单位应当经国家质检总局注册登记,未经注册登记不得从事代理报检业务。( )
【单选题】FX2N-40MR PLC表示F系列( )。
【单选题】“制造费用”账户按用途和结构分类属于( )