【判断题】梯形图中线圈左侧可以没有触点,与左母线直接相连
【单选题】The value chain is the sequence of business functions in which ________.
A.
value is deducted from the products or services of an organization
B.
producing and delivering the product or service is of prime importance
C.
products and services are evaluated with respect to their value to the supply chain
D.
usefulness is added to the products or services of an organization
【判断题】梯形图中线圈可以直接与左母线相连。( )
【判断题】在S7-200 PLC的梯形图中,线圈可以与左母线直接相连。
【判断题】梯形图中的线圈可以直接与左母线相连。()
【单选题】重症肺炎和轻症肺炎的鉴别诊断主要是依据:
【单选题】A firm's value chain is linked to the:
A.
value chains of its suppliers and customers.
B.
value webs of its suppliers and distributors.
C.
value chains of its suppliers, distributors, and customers.
D.
value webs of its industry.