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【单选题】
常用做机器自带滑油泵的是____。A.
外啮合齿轮泵
B.
带月牙形隔板的内啮合齿轮泵
C.
转子泵
D.
A或B或C
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皮皮学刷刷变学霸
举一反三
【单选题】She kept looking behind to see if she was being followed
A.
her
B.
herself
C.
her own
D.
she
【简答题】隧道监控量测必测项目有哪些?
【单选题】What is mentioned about the woman?
A.
She enjoys swimming.
B.
She is the new manager.
C.
She recently graduated.
D.
She has experience in design.
【简答题】She kept looking behind to see if she was being followed A her B．herself C．her own D．she
【单选题】--- Where is your mother? --- She _______ to Sichuan on business. She has ______ there four times recently.
A.
has gone; gone
B.
has been; been
C.
has gone; been
D.
has been; gone
【简答题】隧道监控量测的必测项目有哪些？
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