操作系统为用户程序完成与( )的工作。A.硬件无关和应用无关 B.硬件相关和应用无关

题型:单项选择题

问题:

操作系统为用户程序完成与( )的工作。

A.硬件无关和应用无关

B.硬件相关和应用无关

C.硬件无关和应用相关

D.硬件相关和应用相关

考点:计算机等级考试PC技术三级PC技术笔试
题型:单项选择题

 When a lion was asleep, a little mouse began running up and down beside him, ___小题1:__made some noise. This soon wakened the lion. ___小题2:__(lose)his temper, he caught the mouse in his paws and was about to kill it. The mouse, terrified, pleaded to the lion to spare ___小题3:___life.

"Please let me go," it cried, "and one day I will repay you for your ___小题4:___(kind)." The idea of so small a creature ever being able to do anything for him amused the lion so much __小题5:_he laughed aloud. He thought, “How could this little mouse help me?” ___小题6:__, he lifted his paws and let it go.

But the mouse’s chance came after all. A few days later, when the lion was wandering in the forest, he __小题7:__ (catch) in a trap.

The hunters wanted to take him alive to the king, __小题8:___he tied him to a tree, and went away to look for a wagon.

Just then the little mouse passed ____小题9:__, and saw the sad lion. It went up to him and soon gnawed away(啃断) the ropes. “Was I right?” asked the little mouse. This lion ___小题10:__ (nod) his head and thanked the little mouse.

题型:单项选择题

过去教材中实验室制氧气,常用氯酸钾与二氧化锰混合加热制取,装置如图所示,从预热到收集满一瓶(250mL)氧气大约需8~10分钟,从反应后剩余的固体中回收二氧化锰比较困难,曾有同学去闻自己收集到的氧气,想找找吸氧的感觉,结果却闻到刺激性气味(少量氯酸钾发生副反应生成有毒的氯气)。 现行教材已改用过氧化氢溶液和二氧化锰混合制取氧气,你认为这样做的优点都有哪些?

(1)_________________________________________;

(2)_________________________________________;

(3)_________________________________________;

(4)_________________________________________。

题型:单项选择题

彭某,女性,36岁。1周来每日一次寒战、发热,寒甚热微,呕吐腹泻,嗜睡不语,神志昏蒙,舌苔厚腻色白,脉弦。3周前曾去云南旅游。治疗此病证首选的方剂是()

A.截疟七宝饮

B.何人饮

C.清瘴汤

D.加味不换金正气散

E.柴胡截疟饮

题型:单项选择题

《中 * * 党党员领导干部廉政从政若干准则》存在的问题()。

A.内容过繁

B.正面倡导不足

C.禁止性条款纪法不分

D.“廉洁”主题不突出

题型:单项选择题

简述表达校勘成果要求。

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