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【单选题】
某精馏塔的馏出液量是50kmol／h，回流比是2，则精馏段的回流量是A.
100kmol／h
B.
50kmol／h
C.
25kmol／h
D.
125kmol／h
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反馈参考答案：
举一反三
【多选题】Choose the right answers.
A.
in receipt of
B.
out of line with
C.
come to terms
D.
in view of
E.
make a little concession Dear Smith, We are 1 your letter dated April 20, offering us 200 Swiss knives at USD 150. In reply, we have to point out that your price is 2 the world market. If you can 3 , say a reduction of 10%, we may 4 . It is 5 our long-standing business relations that we make a counteroffer so favorable. We hope you will accept our counteroffer and await your favorable news. Yours Faithfully,
【简答题】Rewrite the following sentences in conversational style. 1.I hereby acknowledge receipt of your July 7 letter. 2.Anticipating your reply by return mail,I remain. 3.We take pleasure in advising that Co...
【简答题】l Rewrite the following sentences by following the Three Cs Principles of business writing. 1. He went to
the fair for the purpose of finding a partner. 2. We plan to
give consideration to the idea at...
【简答题】在轴的直径相同的情况下，滚动轴承的径向尺寸（）滑动轴承的径向尺寸（）
【简答题】terms of payment 2. date of shipment 3. We feel satisfied with your duplicate samples. 4. We are happy to receive your Purchase Order No. 13-415. 5. We will wire 30% of the total val...
【简答题】试题编号: J1-25 《网上训练平台》关键算法 ( 1 )任务描述 某学校软件技术专业的老师为训练学生编程逻辑和编程思维,决定开发一个网上训练平 台,供学生课后进行编程训练。学生可以使用系统提交程序并由系统对程序的正确性进行判 定。为实现该系统,需要提供大量的练习题及对应的程序。请完成以下的任务。 任务一:实现小球反弹问题关键算法并绘制流程图( 30 分) 一个球从 100 米高度自由落下,每次...
【单选题】We are in receipt of your enquiry of Sept. 5, _______ which we replied by fax this morning.
A.
for
B.
to
C.
against
D.
in
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