A类IP地址用几位二进制数表示网络地址A.7 B.14 C.21 D.以上都不对

题型:单项选择题

问题:

A类IP地址用几位二进制数表示网络地址

A.7

B.14

C.21

D.以上都不对

考点:计算机等级考试网络技术国家计算机三级(网络技术)84
题型:单项选择题

下列那些可影响药物的血药浓度()。

A、药效学相互作用

B、心脏疾患

C、经常接触有机溶剂

D、饮茶和咖啡

E、不同人种

题型:单项选择题

单词拼写。

1. You have to be ______ (耐心的) if you are waiting at the end of a long queue.

2. Thank you for giving me so much valuable ______ (建议).

3. The book is well worth ______ (看). You'd better buy it.

4. Going fishing at the weekend is a good ______ (选择).

5. Though he lives alone, he has a lot of friends and doesn't feel ______ (孤独的).

6. Mrs. White smiled ______ (幸福地) when she received a present from her daughter.

7. Can you tell us some ______ (差异) between the twins?

8. He is so careless that he made lots of ______ (错误) in the test.

9. Our English teacher often spends plenty of time ______ (解释) questions to us.

10. Are you sure they will have no difficulty ______ (完成) the work in two days?

11. Have you made a ______ (决定) to give up the visit to the EXPO?

12. Columbus (哥伦布) was the first to ______ (发现) America.

13. Has your penfriend ______ (答复) to your letter recently?

14. Congratulations! You have made great ______ (进步) in your English.

15. He dislikes the selfish man, I don't like him, ______ (也).

题型:单项选择题

男性,58岁,胸痛、痰中带血丝3个月余,胸部X线片示右肺上叶有一不规则肿块阴影。既往有结核病史。拟诊肺癌。

入院后1周在全麻下行右上肺叶切除术,术后第一天病人最适宜的体位是()

A.平卧位

B.左侧卧位

C.右侧卧位

D.头地脚高卧位

E.半卧位

题型:单项选择题

设计高质量的软件是软件设计追求的一个重要目标。可移植性、可维护性、可靠性、效率、可理解性和可使用性等都是评价软件质量的重要方面。可移植性是指将一个原先在某种特定的硬件或软件环境下正常运行的软件移植到另一个硬件或软件的环境下,使得该软件也能正确运行的难易程度。为了提高软件的可移植性,应注意提高软件的__(1)__。可维护性通常包括__(2)__。通常认为,软件维护工作包括正确性维护、__(3)__维护和__(4)__维护。其中__(5)__维护则是为了扩充软件的功能或者提高原有软件的性能而进行的维护活动。__(6)__是指当系统万一遇到未预料的情况时,能够按照预定的方式来作合适的处理。

空白(1)处应选择()

A.使用方便性

B.简洁性

C.可靠性

D.设备不依赖性

题型:单项选择题

糖尿病酮症酸中毒治疗中补碱的指征是()

A.二氧化碳结合力小于13.5mmol/L(30Vo1%)

B.血pH小于6.9

C.血酮体阳性

D.血清碳酸氢根浓度小于5mmol/L

E.低血压

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