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【单选题】
在确定数控机床坐标系时,首先要确定的是 。A.
X轴
B.
Y轴
C.
Z轴
D.
回转运动的轴
拍照语音搜题，微信中搜索"皮皮学"使用
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】A UNIX user named Bob wants to replace his chess program with a new one, but he is not sure where theold one is installed. Bob is currently able to run a Java chess program starting from his home dire...
A.
/test/Chess.class
B.
/home/bob/Chess.class
C.
/test/games/Chess.class
D.
/usr/lib/games/Chess.class
E.
/home/bob/games/Chess.class
F.
inside jarfile /opt/java/lib/Games.jar (with a correct manifest)
G.
inside jarfile /home/bob/downloads/Games.jar (with a correct manifest)
【单选题】—Are these ______ tennis rackets? —No, they aren't. They're ______. [ ]
A.
his, her
B.
his, hers
C.
hers, his
D.
yours, mine
【单选题】Having re-established his authority, tie was ready to renew his ________ more power.
A.
bid of
B.
bid to
C.
bid at
D.
bid for
【简答题】在货币概览中，下列属于准货币的是（ ）。
【简答题】一系统 经过一个不可逆循环后,环境的熵变 0,系统的熵变 0。(选填大于,等于,小于)
【单选题】—Where're his keys? —_____. [ ]
A.
It's on the desk
B.
No, it isn't
C.
Yes, it is
D.
They're on the bookcase
【简答题】下列属于准货币的是（ ）。
【简答题】听下面一段对话，回答第1-2小题。 1. What is the man's name? A. Bob. B. Mike. C. Peter. 2. Where is the woman from? A. America. B. China. C. Australia.
【单选题】系统经过一个不可逆循环后,其 熵变
A.
系统的熵变大于零，环境的熵变等于零
B.
系统的熵变等于零，环境的熵变大于零
C.
系统的熵变等于零，环境的熵变等于零
D.
系统的熵变大于零，环境的熵变大于零
【单选题】A UNIX user named Bob wants to replace his chess program with a new one，but he is hot sure where the old one is in stalled.Bob is currently able to run a Java chess program starting from his home dire...
A.
/test/Chess.class
B.
/home/bob/Chess.class
C.
/test/games/Chess.class
D.
/usr/lib/games/Chess.class
E.
/home/bob/games/Chess.class
F.
inside jarfile/opt/java/lib/Games.jar（withacorrectmanifest）
G.
inside jarfile/home/bob/downloads/Games.jar（withacorrectmanifest）
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