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【多选题】
血液的成分包括哪些A.
血浆
B.
红细胞
C.
白细胞
D.
血小板
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举一反三
【简答题】下图所示是某监控报警线路，u i 是由传感器转换来的监控信号，U R 是基准电压。当u i 超过基准值时，报警灯亮，试说明其工作原理。二极管D和电阻R 3 的作用?
【单选题】I hope they ______ this road by the time we come back next summer.
A.
have repaired
B.
will repair
C.
are to repair
D.
will have repaired
【多选题】Please identify the cause and effect of the problem in the following situation. Teens spend too much time on screen. We ’ re raising our children in captivity and they turn to technology to socialize,...
A.
The cause is "Teens spend too much time on screen."
B.
The effect is "They turn to technology to socialize, learn and decompress."
C.
The cause is "We ’ re raising our children in captivity."
D.
The problem is "Teens spend too much time on screen."
【单选题】银团贷款中，代理行的主要职责不包括( )。
A.
代表银团与借款人谈判确定银团贷款条件
B.
办理银团贷款的担保抵押手续，并负责抵(质)押物的日常管理工作
C.
制作账户管理方案，开立专门账户管理银团贷款资金，对专门账户资金的变动情况进行逐笔登记
D.
借款人出现违约事项时，及时组织银团贷款成员对违约贷款进行清收、保全、追偿或其他处置
【单选题】单片机XTAL1和XTAL2引脚接晶体振荡器的,如果晶体振荡器的频率是12MHz,那么单片机的机器周期是多少?
A.
1/6us
B.
1us
C.
2us
D.
12us
【单选题】What does the woman mean?
A.
They re ready for the snow.
B.
Once it starts, it 11 snow a lot.
C.
It has been snowing for some time.
D.
The winter has just begun.
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