题目内容

When we watch sports programs on TV, it’s important to hear what is going on. So who does the talking usually?

A. The commentator
B. The referee
C. The player
D. The manager

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In most sports, the person who is in charge of the game and makes certain the rules are followed is called a/an:

A. Manager
B. Sponsor
C. Athlete
D. Referee

It’s common for singers, writers and other artists to sign up with __________, to negotiate work for them.

A. an agent
B. a scout
C. a dealer
D. a therapist

What do we call people who appear in TV or film productions as ordinary people in the background?

A. additions
B. extras
C. freelancers
D. agents

Choose the incorrect statement for the open reading frame.

A.It is helpful in deciding whether the clone is correct or not
B.It consists of an initiation codon
C.It consists of a termination codon
D.The presence of introns doesn’t affect the open reading frame

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