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【单选题】
用来指示与处理器有系统状态,中断装置在保护现场时一定要保护起来的是( )。A.
PCB
B.
PSW
C.
SPOOL
D.
CCW
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【简答题】什么叫人为故障?
【简答题】患儿1岁。鼻塞、流涕3天入院，突然喘憋加重，口唇发绀，鼻翼扇动。查体：T39.5℃，R42次／分，三凹征阳性，两肺闻及广泛哮鸣音，右肺底闻及少许小水泡音。血象：WBC4.0×10 ／L，N0.4，L0.6。胸片可见少许点片状影及肺气肿。该患者最可能的临床诊断是A、肺炎链球菌肺炎 B、呼吸道合胞病毒肺炎 C、腺病毒肺炎 D、支原体肺炎 E、哮喘性支气管炎 下列有关该病原体的叙述，错误的是A、属于副黏...
【简答题】以太网的数据帧封装中，包含在TCP段中的数据部分最长应该是（ ）字节。（注：本题中IP和TCP都只有首部固定长度，且以太网的MTU=1500字节）
【单选题】There was a terrible noise ________ the sudden burst of ligh
A.
followed
B.
following
C.
to be followed
D.
being followed
【单选题】以太网的数据帧封装中,包含在TCP段中的数据部分最长应该是 字节。(注:本题中IP和TCP都只有首部固定长度,且以太网的MTU=1500字节)
A.
1480
B.
1460
C.
1450
D.
1500
【简答题】The candle cast a flickering light on the wall是
【单选题】Agitated Sunspot Cause Trouble If the lights in your house keen flickering, blame frequent sunspots. A sunspot is actually charged particles flying at the speed 6f 3 million kilometers an hour out of ...
A.
Ionosphere is high above the earth.
B.
One is that the magnetic filed of the earth is much disturbed because of the sun's interference in the ionosphere which is 80 to 500 kilometers above the earth.
C.
Scientists also say that the active movement of the charged sun storm also has effects on earthquakes.
D.
Every 11 years, the sun, as its energy accumulate inside up to a certain point, will send out streams of charged particles, which affect the earth in different ways.
E.
But the communication situation in each case returned to normal in about 24 hours.
F.
So, scientists warn that people going outdoors should be careful to protect their exposed skin and eyes with clothes, umbrellas and sunglasses from the strong sunlight rich.in ultraviolet rays.
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