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【单选题】
设 x=-1的时候 ,级数 条件收敛,则级数A.
条件收敛
B.
绝对收敛
C.
发散
D.
不能确定
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皮皮学刷刷变学霸
举一反三
【单选题】—I called you yesterday evening, but there was no answer. —Oh, I’m sorry. I ________ dinner in my friend’s home.
A.
have
B.
will have
C.
was having
D.
have had
【简答题】关于远程教育的起源有两种不同观点,一种观点认为远程教育起源于东方的 国,该观点的代表学者是 ; 另一种观点是认为远程教育起源于西方的 国,该观点的代表学者是 。
【简答题】什么是贸易术语( trade terms )?其所用是什么?买卖合同中一定要用贸易术语吗?
【单选题】关于远程教育起源有两种不同的观点,一种认为远程教育起源于西方的 ( ) 国,该观点的代表学者是 ( ) ;一种认为远程教育起源于东方的 ( ) 国,该观点的代表学者是 ( )。
A.
英 谢新观；中 丁兴富
B.
美 丁兴富；中 谢新观
C.
英 丁兴富；中 谢新观
D.
中 谢新观；美 丁兴富
【简答题】完形填空。 When I was young, I liked to play jokes on people I knew, especially on my parents and friends. One day my mother was 1 and I was playing with my younger brother Tony. Suddenly I ran to my mothe...
【单选题】—I called you yesterday evening, but there was no answer. —Oh, I'm sorry. I _______ dinner at my friend's home. [ ]
A.
had
B.
was having
C.
have had
【单选题】---I called you yesterday evening, but there was no answer. ---Oh, I am sorry I _____dinner at my friend’s house.
A.
have
B.
had
C.
was having
D.
have had
【单选题】— What are you going to do tomorrow? — I'm not sure. I ____ make a trip to Hangzhou with my girl friend. [ ]
A.
may
B.
maybe
C.
will
D.
must
【简答题】贸易术语(Trade terms)
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