格雷码10110转换为二进制码后是11011
A. 对
B. 错
Listen to a conversation and choose the best answer to each of the following questions.What is the relationship between Sharon and Daniel?
A. Teacher and student.
Boyfriend and girlfriend.
C. Mother and son.
[音频]Why is Daniel late today?
A. Because of the heavy traffic.
Because of the bad weather.
C. Because he got up late.
[音频]Which statement is NOT true about Daniel?
A. He is often late for the dates with Sharon.
B. He has hurt Sharon’s feelings.
C. His apology is accepted by Sharon.
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