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【单选题】
数据传输速率是指A.
每秒传输的字节数
B.
每秒信号变化的次数
C.
每秒传输的周期数
D.
每秒传输的比特数
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举一反三
【单选题】What does 'it' in 'it suggests that children shouldn't ...' refer to?
A.
The study.
B.
The reason.
C.
The score.
【单选题】According to the news, what did Iran resume on Monday?
A.
Production of fuel for nuclear reactors.
B.
Small-scale uranium enrichment.
C.
Completion of nuclear weapons.
D.
Maintenance of atomic weapons.
【单选题】What does Jessica think is the most important part of a librarians work?
A.
Dealing with readers well.
B.
Answering strange questions.
C.
Recommending books to readers.
D.
Helping patrons locate books.
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