皮皮学,免费搜题
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【单选题】
Peter come with us tonight ,but he is not very sure yet.
A.
must
B.
can
C.
may
D.
with
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【简答题】听音,选择正确的词语,完成句子。 Word List: grocery store, businesswoman, movie theatre, January 1. I want to go to the  ______________ to buy _________________ (some fruits/a book/a toy car). 2. A ______________ wor...
【简答题】阅读理解 Shoppers who carefully plan their visit to the grocery store  can save money on their grocery bills. _ 1 __ Shoppers should visit the grocery store on a full stomach  by scheduling their trip imm...
【单选题】脱丁烷塔顶出的产品是
A.
液化气
B.
轻石脑油
C.
航空煤油
D.
柴油
【单选题】The word “grocery” refers to _______ in Chinese.
A.
食品杂货
B.
奶制品
C.
咖啡
D.
剃须刀
【判断题】"abc"和"老师好"的长度都是3。( )
A.
正确
B.
错误
【简答题】脱丁烷塔塔顶压力为2.3MPa,采用全凝器,塔顶产品组成和相对挥发度为: 试计算塔顶产品的饱和温度。
【单选题】bookstore, bakery, shopping mall, grocery
A.
bookstore
B.
bakery
C.
shopping mall
D.
grocery
【简答题】脱丁烷塔塔顶压力为2.3MPa,采用全凝器,塔顶产品组成为: 试计算塔顶产品的饱和温度。
【简答题】脱丁烷塔分离下列混合液: 工艺规定丁烷为轻关键组分,异戊烷为重关键组分。分离所得的塔顶产物组成已列于上表,各组分相对于重关键的相对挥发度也列于表中。料液为饱和液体。试求最小回流比Rm。并应用清晰分割法进行塔顶和塔釜产品的量和组成的估算。已知轻关键组分丁烷在塔顶产品中的收率为98.1%,重关键组分异戊烷在塔釜产品中的收率为94.2%。进料量F=983kmol/h。
【简答题】While going grocery shopping, the speaker suggests people should take to grocery store______.
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