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【判断题】
顺序阀的基本功能是控制多个执行元件的顺序动作,但不能作为背压阀使用。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】连词成句。 1. Thursdays, on, have, What, you, do (?) _____________________________________________________ 2. English, We, and, have, science (.) _____________________________________________________
【单选题】---Why do you keep looking back? ---I have a feeling that we _______.
A.
were followed
B.
have been followed
C.
are being followed
D.
are following
【简答题】看图回答问题。 1. When do you have supper? _______________________________________ 2. Do you have supper with your family? _______________________________________ 3. What are these? _________________________...
【单选题】听力原文：You have reached the inquiry system of Parson's Telecommunications. Dial 011 followed by the extension number if you wish to speak to an employee. For information regarding our services and offer...
A.
Employees.
B.
Software programmers.
C.
Customers.
D.
Telephone operators.
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