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【单选题】
KZS/M-I型集中轴温报警器的系统电路主要包括( )。A.
DB15插头电源输入线（DB12和13），保护二极管IN4007（或4004），自4恢复熔断器，电源模块
B.
主要是89C52（或78E52）集成电路主程序芯片
C.
主要包括DB15插头传感器连接线（DBl-10脚），传感器智能接口模块
D.
主要包括液晶显示器及外围电路R17，R18，R19
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【单选题】Understanding________cultural habits of another nation is_______ difficult thing.
A.
a; the
B.
the ; the
C.
the; a
D.
/; a
【单选题】Mike spent time with ____native people to gain ____ better understanding of the country.
A.
the; a
B.
the; /
C.
a; the
D.
/; a
【简答题】在关系模式分解中,若要保证不丢失信息,则分解应具有____。
【单选题】( ) means a failure or refusal to make acceptance or payment of a bill of exchange when presented to the drawee.
A.
honor and disrecourse
B.
Dishonor and disrecourse
C.
honor and recourse
D.
Dishonor and recourse
【单选题】Through a series of experiments, an American scientist has obtained an understanding of the social structure of the most complex of ant societies. The ants examined are the only creatures other than m...
A.
They do not need to search for food.
B.
They do not need to look for shelter.
C.
Individuals vary in social status.
D.
Individuals perform. different functions.
【单选题】The story is about an old Indian villager and an American tourist in India, _______ understanding the other’s language.
A.
none of whom
B.
both of them
C.
none of them
D.
neither of whom
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