【单选题】古人作诗,“始于用巧,则终于以不巧为巧”。关于作诗之巧,刘禹锡曾称赏唐代某位诗人的诗歌创作时说:“郢人斤斫无痕迹,仙人衣裳弃刀尺”。请问,被刘禹锡称赏的是唐代的哪一位诗人?
【判断题】The time for checkout in this hotel is 12 a.m.
【单选题】古人作诗,“始于用巧,则终于以不巧为巧”。关于作诗之巧,刘禹锡曾称赏唐代某位诗人的诗歌创作时说:“郢人斤斫无痕迹,仙人衣裳弃刀尺”。请问,被刘禹锡称赏的是唐代的哪一位诗人?
【多选题】物联网中常提到的 “M2M”概念包括下面哪些( )
B.
人到机器(Man to Machine) )
D.
机器到机器(Machine to Machine
【单选题】设随机变量X的概率密度为【图片】,则D(X)=
【单选题】设随机变量X的概率密度【图片】,则【图片】的值为
【单选题】What is the appositive (同位语) in the sentence of “His eyes watching every scanner, the busy clerk, a young man from India, monitored the customers in the self-checkout area at the hardware store”?
A.
His eyes watching every scanner
B.
a young man from India
C.
in the self-checkout area at the hardware store
【单选题】设随机变量X的概率密度【图片】,则【图片】的值为
【判断题】RFID can realize self-checkout in supermarkets.