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【多选题】
本次实验会用到的固液分离的方法有哪些?A.
常压过滤
B.
减压过滤
C.
离心分离
D.
浓缩结晶
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反馈参考答案：
举一反三
【简答题】I would appreciate _____ it a secret. (A) your keeping (B) you to keep (C) that you keep (D) that you will keep
【单选题】Which of the following commands sets the secret password to Cisco?
A.
enable secret password Cisco
B.
enable secret cisco
C.
enable secret Cisco
D.
enable password Cisco
【简答题】A．private B．overt C．public D．secret
【单选题】If you conceal a secret from your friends, you
A.
tell them the secret.
B.
keep the secret hidden and don't tell it.
C.
hear them tell you the secret.
参考解析：
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