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【单选题】
______ 'Goofing off' in the passage means spending time aimlessly.A.
T
B.
F
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反馈参考答案：
举一反三
【单选题】A nuclear family is defined as
A.
a married couple with their minor children
B.
a single father with minor children
C.
parents, grandparents, and children
D.
parents,children,and aunts and uncles
【单选题】A pump is defined as device that
A.
produces pressure
B.
imparts energy to a fluid to move it from level ‘A’ to level ‘B’
C.
creates a vacuum to move a liquid in all installation
D.
is to develop a pressure differential
【单选题】关于队员未经裁判员允许擅自离场的说法中,以下哪种说法是正确的?
A.
运动员绝不可以在未经裁判员允许的情况下擅自离场。
B.
队员可以在任何时间离开比赛场地。
C.
如果队员受伤了。
D.
以上答案均不正确。
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