题目内容

Which position is the soul of one team?

A. setter
B. hitter
C. libero
D. specialist

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A line 3 m from and parallel to the net is considered the "_______"(进攻线)

A. front line
B. back line
C. middle line
D. attact line

The diameter of the ping-pong ball is ___.

A. 38mm
B. 40mm
C. 40+mm
D. 41mm

Which one below is not the requested color of the ball in the rule book.

A. orange
B. white
C. black

International rules specify that one side must be ___while the other side must be ____.

A. red;white
B. red;gray
C. black;purple
D. black;red

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