物联网中物与物、物与人之间的通信是()方式。
A.只利用有线通信
B.只利用无线通信
C.综合利用有线和无线两者通信
D.既非有线亦非无线的特殊通信
参考答案:C
34. --Have you ever heard of an American president called Chester A.Arthur?
--No, and he is not mentioned in my history book at all. He seems ______________.
A. to have been completely forgotten B. having completely forgotten
C. to have completely forgotten D. completely forgetting
当税法提供了多种纳税方案时,纳税人有权作出选择最低税负方案的决策,税收机关应反对。