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【判断题】
压力控制阀是液压控制元件A.
正确
B.
错误
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
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皮皮学刷刷变学霸
举一反三
【简答题】We’ll sign the contract ___ condition that the packing instructions of the users are observed.
【单选题】Unfortunately, quite a number of the users are dissatisfied _____ your Straw Baskets supplied to Order No. T90.
A.
to
B.
with
C.
on
D.
above
【简答题】亚里士多德如何定义悲剧的？
【简答题】简述亚里士多德的教育思想。
【单选题】Users are unable to access the Internet but the users are able to send/receive email from theirdesktops. Which of the following ports is MOST likely being blocked?（）
A.
25
B.
80
C.
110
D.
143
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