【单选题】—I called you yesterday evening, but there was no answer. —Oh, I’m sorry. I ________ dinner in my friend’s home.
【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 ( )。
【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. [ ]
【单选题】---I called you yesterday evening, but there was no answer. ---Oh, I am sorry I _____dinner at my friend’s house.
【单选题】— What are you going to do tomorrow? — I'm not sure. I ____ make a trip to Hangzhou with my girl friend. [ ]
【单选题】关于热机,下列说法错误的是()
A.
柴油机的效率比汽油机的高,这是因为柴油的热值比汽油的大
C.
用水作为循环物质降低热机的温度,是利用水的比热容最大的特性
D.
严寒的冬天,晚上把热机水箱中的水放出,是防止气温降低时,水凝固
【单选题】My sister isn't good at singing. I'm not good at singing, ( ).