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【单选题】
聚合酶链反应可表示为( )。A.
PEC
B.
PER
C.
PDR
D.
PCR
E.
BCR
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反馈参考答案：
举一反三
【简答题】在对话中找出下列五个英文问题对应的答案,并请将问题和答案都翻译成汉语。 1.What is the definition of an industrial robot? 2.What is the most human like characteristic of an industrial robot? 3.What is the similarity between an industrial...
【单选题】Why should a machine be tested after it is assembled?
A.
Because the instructions tell us so
B.
Because the mechanic expericence tells us so
C.
Because we want to know whether it can work properly.
D.
Because our intution tells us to do so.
【单选题】We have to tell our children ______ too much fast food.
A.
don ’ t eat
B.
not eat
C.
not to eat
D.
to not eat
【简答题】We have to tell them to be careful ______________ safety reasons.
【简答题】They were some occasions ________we have to tell some white lies.
【单选题】Why should a machine be tested after it is assembled?
A.
Because the instructions tell us so.
B.
Because the mechanic experience tells us so.
C.
Because we want to know whether it can work properly.
D.
Because our intuition tells us to do so.
【简答题】豆腐乳生产中常用的凝固剂有哪些？
【单选题】Dear company owner, If you want to install vending machines in your office building, why dont you use our Super Mom Vending? Although a healthy snacks vending machine from Super Mom Vending has many a...
A.
To advertise a food company
B.
To encourage employees to use vending machines
C.
To publicize a company product
D.
To notify customers of a sale event
【简答题】你听到一段对话，根据你所听到的内容回答1-5小题，听两遍。 1．What's the machine for? [ ] A. For learning English. B. For studying every subject. C. For learning languages. 2．Why should the man press the button (按钮) first? [ ...
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