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【单选题】
AT89S51单片机计数初值的计算中,若设最大计数值为M,对于工作方式1下的M值为( )。A.
8192
B.
256
C.
16
D.
65536
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【单选题】Many early Chinese immigrants worked in the mining industry, especially in the .
A.
copper mines
B.
silver mines
C.
coal mines
D.
gold mines
【简答题】MCS-51单片机正常工作所必须的外部硬件电路是_________、__________、________。
【单选题】听力原文：M: In the early 1860's many more Chinese arrived in California. Was there any improvement for Chinese's living conditions? F: Oh, no. This time the men were imported as work crews to construct th...
A.
in the early 1850's.
B.
in the late 1850's
C.
in the early1860's.
D.
in the late 1860's.
【简答题】MCS-51单片机正常工作所必须的外部硬件电路是________、________、________。
【简答题】MCS-51单片机正常工作所必须的外部硬件电路是( )、( )、( )。
【单选题】In the early 1860's many Chinese work crews were imported to ______.
A.
be railway builders
B.
be miners
C.
do the laundry
D.
run restaurants
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