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【简答题】
在一个由AT89C51单片机与一片ADC0809组成的数据采集系统中,ADC0809的8个输入通道的地址为7FF8H~7FFFH,试画出有关接口的电路图,并编写每隔1分钟轮流采集一次8个通道数据的程序,共采样50次,其采样值存入片外RAM中以2000H单元开始的存储区中。
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参考答案：
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【单选题】一台额定电压为220V的三相异步电动机定子绕组Δ接线，若起动时定子绕组改成Y接线，且接在380V的交流电源上，则电机的
A.
起动转矩不变
B.
起动转矩增大
C.
起动转矩减少
D.
以上答案都不对
查看完整题目与答案
【单选题】A client who had an application of a right arm cast complains of pain at the wrist when the arm is passively moved. The nurse should take which action first?
A.
Elevate the arm.
B.
Document the findings.
C.
Medicate with an additional dose of an opioid.
D.
Check for paresthesias and paralysis of the right arm.
查看完整题目与答案
【单选题】When controlling the virtual router assignment for a PPP over ATM client, which mechanism does the router use first?（）
A.
profile
B.
domain map
C.
DHCP server
D.
RADIUS server
查看完整题目与答案
【简答题】Please use the following information to prepare the adjusting journal entries. On November 1, the Institute agreed to do a special five-month course (starting immediately) for a . The contract c...
查看完整题目与答案
【单选题】When you meet a client for the first time, you should ( ) .
A.
stare off somewhere
B.
say that you are interested in him
C.
make eye contact with him
D.
not shake hands with him
查看完整题目与答案
【判断题】襄阳市位于湖北省西北部,长江中游平原腹地,因地处襄水之阳而得名,这个叙述是对的还是错的?
A.
正确
B.
错误
查看完整题目与答案
【单选题】The nurse is interviewing a client in the clinic for the first time. When the client tells the nurse that he smokes "about two packs of cigarettes a day, "the nurse should
A.
look at the client with a frown.
B.
tell the client that he is spending a lot of money foolishly.
C.
provide the client with a list of dangers associated with smoking
D.
encourage the client to quit smoking.
查看完整题目与答案
【单选题】一台额定电压为220的三相异步电动机定子绕组△接线,若起动时定子绕组改成Y接线,且接在380V的交流电源上,则电机的( )。
A.
起动转矩增大
B.
起动转矩减少
C.
起动转矩不变
D.
起动转矩不确定
查看完整题目与答案
【单选题】When you make phone calls to a foreign client, you should first decide the___of calling.
A.
project
B.
plate
C.
purpose
D.
plain
查看完整题目与答案
【单选题】Nurse Jay is caring for a client with an ongoing transfusion of packed RBC's when suddenly the client is having difficulty in breathing,skin is flushed and having chills. Which action should nurse Jay...
A.
Adminster oxygen.
B.
Place the client on droplight.
C.
Check the client's temprature.
D.
Stop the transfusion.
查看完整题目与答案
相关题目：
【单选题】一台额定电压为220V的三相异步电动机定子绕组Δ接线，若起动时定子绕组改成Y接线，且接在380V的交流电源上，则电机的
A.
起动转矩不变
B.
起动转矩增大
C.
起动转矩减少
D.
以上答案都不对
查看完整题目与答案
【单选题】A client who had an application of a right arm cast complains of pain at the wrist when the arm is passively moved. The nurse should take which action first?
A.
Elevate the arm.
B.
Document the findings.
C.
Medicate with an additional dose of an opioid.
D.
Check for paresthesias and paralysis of the right arm.
查看完整题目与答案
【单选题】When controlling the virtual router assignment for a PPP over ATM client, which mechanism does the router use first?（）
A.
profile
B.
domain map
C.
DHCP server
D.
RADIUS server
查看完整题目与答案
【简答题】Please use the following information to prepare the adjusting journal entries. On November 1, the Institute agreed to do a special five-month course (starting immediately) for a . The contract c...
查看完整题目与答案
【单选题】When you meet a client for the first time, you should ( ) .
A.
stare off somewhere
B.
say that you are interested in him
C.
make eye contact with him
D.
not shake hands with him
查看完整题目与答案
【判断题】襄阳市位于湖北省西北部,长江中游平原腹地,因地处襄水之阳而得名,这个叙述是对的还是错的?
A.
正确
B.
错误
查看完整题目与答案
【单选题】The nurse is interviewing a client in the clinic for the first time. When the client tells the nurse that he smokes "about two packs of cigarettes a day, "the nurse should
A.
look at the client with a frown.
B.
tell the client that he is spending a lot of money foolishly.
C.
provide the client with a list of dangers associated with smoking
D.
encourage the client to quit smoking.
查看完整题目与答案
【单选题】一台额定电压为220的三相异步电动机定子绕组△接线,若起动时定子绕组改成Y接线,且接在380V的交流电源上,则电机的( )。
A.
起动转矩增大
B.
起动转矩减少
C.
起动转矩不变
D.
起动转矩不确定
查看完整题目与答案
【单选题】When you make phone calls to a foreign client, you should first decide the___of calling.
A.
project
B.
plate
C.
purpose
D.
plain
查看完整题目与答案
【单选题】Nurse Jay is caring for a client with an ongoing transfusion of packed RBC's when suddenly the client is having difficulty in breathing,skin is flushed and having chills. Which action should nurse Jay...
A.
Adminster oxygen.
B.
Place the client on droplight.
C.
Check the client's temprature.
D.
Stop the transfusion.
查看完整题目与答案
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