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【单选题】
用户程序通过系统调用 creat来创建一新文件时,在执行creat()的过程中,用户进程运行在( )下。A.
用户态
B.
系统态
C.
系统态或用户态
D.
目态
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反馈参考答案：
举一反三
【单选题】721型分光光度计在使用时发现波长在580nm处,出射光不是黄色,而是其他颜色,其原因可能是()
A.
有电磁干扰,导致仪器失灵
B.
仪器零部件配置不合理,产生实验误差
C.
实验室电路的电压小于380V
D.
波长指示值与实际出射光谱值不符合
【单选题】The machinery had been wrecked so efficiently that the police were sure it was a case of___.
A.
vagabond
B.
sabotage
C.
paradox
D.
tachyon
【简答题】In _1_ , Assar Gabrielsson, a _2_ manager and Gustav Larson, an_3_ , had the _4_ to build _5_ that people could drive on Sweden's rough _6_ and during Sweden's _7_ winters._8_ years later, the first V...
【简答题】Jim Doherty may not be a born farmer, but he __________ (1) without too much trouble. Not that he has had it easy. That first hard winter he faced must have left him with the __________ (2) to give up...
【简答题】约占乳蛋白总量的 80 %,是牛乳中的主要蛋白质。
【简答题】Jim Doherty may not be a born farmer, but he(1) _______ without too much trouble. Not that he has had it easy ( 但也不是那么容易 ) . That first hard winter he faced must have left him with the (2)___________ ...
【单选题】The machinery had been wrecked so efficiently that police were sure it was a case of______ .
A.
vagaboned
B.
sabotage
C.
paradox
D.
tachyon
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