单项选择题

The word "officials" (Line 2, Par

A．4) most probably refers to______.A. the researchers involved in the experimentB. the inspectors of the football tournamentC. the referees of the football tournamentD. the observers at the site of the experiment

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单项选择题

The findings of the experiment show that______.

A．errors are more likely when a referee keeps close to the ball
B．the farther the referee is from the incident, the fewer the errors
C．the more slowly the referee runs, the more likely will errors occur
D．errors are less likely when a referee stays in one spot

单项选择题

The experiment conducted by the researcher was meant to______.

A．review the decisions of referees at the 1998 World Cup
B．analyse the causes of errors made by football referees
C．set a standard for football refereeing
D．reexamine the rules for football refereeing