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【单选题】
MP3 芯片 YS-M3A3 编程驱动时,如果我们指定播放 1 号语音文件,需要发送 : FD 04 41 00 01 DF 如 播放2 号语音文件,需要发送()。A.
FD 04 41 00 01 DF
B.
FD 04 41 00 02 DF
C.
FD 04 41 00 03 DF
D.
FD 04 41 00 04 DF
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【单选题】听力原文：M: Does the boss check up on you often? W: Indeed she does. It seems as though she's in here three or four times an hour, although it's not really that often. Q: What does the boss do? (19)
A.
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B.
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C.
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D.
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【单选题】听力原文：M: Does the boss check up on you often? W: Indeed she does. It seems as though she's in here three or four times an hour, although I'm sure it's not that often. Q: What does the boss do? (17)
A.
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B.
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C.
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【单选题】听力原文：M: Does the boss check up on you often? W: Indeed she does. It seems as though she's in here three or four times an hour, although I'm sure it's not that often. Q: What does the boss do? (14)
A.
She leaves the office by 3:00 or 4:00 in the afternoon.
B.
She sends her employees for frequent medical check.
C.
She pays her employees by check.
D.
She inspects her employees' work several times a day.
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