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【单选题】
在下述控制线路图中,按钮SB1、SB2分别起( )控制作用。A.
正反转
B.
两地
C.
顺序
D.
Y-△
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反馈参考答案：
举一反三
【单选题】听力原文：His speech was really hitting the main points, wasn't it? (A) So was his last one. (B) Yes, he was appointed. (C) I'm honored to speak to you. (26)
A.
B.
C.
【单选题】下面哪个地址可以作为普通主机的IP地址?
A.
10.10.10.10
B.
128.127.127.127
C.
222.255.255.255
D.
128.128.0.0
【单选题】When one decides to go to college, his main goal is to______________.
A.
change himself
B.
become knowledgeable
C.
graduate on time
D.
be prepared for a career
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