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【多选题】
下列说法正确的是( )A.
采用信源编码技术的目的是提高数字通信系统的有效性 。
B.
非均匀量化提高了小信号的量化信噪比 。
C.
PCM数字电话采用的复用 频分复用。
D.
抽样是对连续信号进行时间离散化处理的过程。
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【简答题】发酵肉制品就是利用等微生物发酵肉，产生特殊的香味。
【简答题】我公司向韩国出口一批金鱼粉,以CFR某港口条件成交。买方银行开出一张不可撤销信用证,有效期5月31日,证内规定在议付单据中,提单必须是空白抬头,运费已付的,商检证明书必须证明蛋白质不低于70%,按规定,4月18日该货装上开往韩国的班轮。受益人25日向银行议付时,提交的提单是不可转让的提单,也未注明运费已付,商检证明书证明含蛋白质67%,发票内所用的商品名称是鱼粉,而不是金鱼粉,开证行拒付。货到目的...
【单选题】King Alfred and the CakesMany years ago there lived in England a wise and good king whose name was Alfred. No other man ever did so much for his country as he; and people now, all over the world, spea...
A.
lazy
B.
stupid
C.
responsible
D.
untrustworthy
【单选题】The second part is from paragraph 7 to 9, and the name of the classic is The Aeneid, whose theme is being torn between the past and the future. From this part, we know that the author’s mother wanted ...
A.
Arts
B.
Literature
C.
Philosophy
D.
Science
【单选题】Whose name did the automaton sign when it finished the picture in Hugo?
A.
Hugo Cabret
B.
Isabella
C.
Georges Melies
D.
Claude Cabret
【单选题】One of the well-known of American writers is Samuel Clemens, whose pen name is Mark Twain. Born in 1835, Twain grew up in the Mississippi River town of Hannibal, Missouri. As did many other boys of hi...
A.
a riverboat pilot
B.
a printer
C.
a gold miner
D.
a famous writer
【单选题】Passage One One of the well-known of American writers is Samuel Clemens, whose pen name is Mark Twain. Bom in 1835, Twain grew up in the Mississippi River town of Hannibal, Missouri. As did many other...
A.
a riverboat pilot
B.
a printer
C.
a gold miner
D.
a famous writer
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