皮皮学，免费搜题
登录
搜题
【简答题】
Dear Sirs, We learn from AIG Co .Ltd. New York that you are a leading exporter in your country. We are, at present, very much interested in importing your goods and would appreciate your sending us catalogues, sample books or even samples if possible. Please give us detailed information of CIF prices, discounts, and terms of payment. We hope this will be a good start for long and profitable business relations. Yours faithfully
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】轴心受压构件的屈曲形式有:( )( )和( )
【单选题】When I came into the classroom, I saw some girls _______ happily.
A.
cry
B.
talk
C.
to run
D.
laughing
【单选题】. ．When I came into the classroom , I found him _______ with his study.
A.
occupied
B.
occupying
C.
to be occupied
D.
was occupied
【简答题】用符号“ ¢ ” 或“ ∈ ” 填空: ( 1)−3 N , 0.5 N , 3 N ;
【多选题】已知随机变量 X 和 Y 分别服从正态分布 N(1, 3 2 ) 和 N(0, 4 2 ) , 且相关系数为−0.5,令 Z = X /3 + Y /2 ,则 ( ).
A.
B.
C.
D.
相关题目：