题目内容

Consumption of the total life-cycle effort in software maintenance is ______ that in software development.

A. less than
B. larger than
C. equal Or less than
D. equal or larger than

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Maintenance activities include ______. ①making enhancements to software products ②developing a new software product ③correcting problems ④adapting products to new environments

A. ①②
B. ①③④
C. ②③④
D. ①②③④

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根据《联合国销售合同公约》的解释，接受必须用声明或行动表示出来，沉默或不行动本身不等于接受。（）

A. 对
B. 错

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双扩试验平板法中，若抗体含量较大，则反应沉淀线应

A. 靠近抗原孔
B. 靠近抗体孔
C. 在两孔之间
D. 呈多条沉淀线
E. 不出现沉淀线

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Passage TwoQuestions 30 to 32 are based on the passage you have just heard.

A. To prevent the lookers-on from getting near.
B. To protect the injured men.
C. To let the fire engines and ambulances pass.
D. To check the leaking gas pipe.

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Consumption of the total life-cycle effort in software maintenance is ______ that in software development.

A. less than B. larger than C. equal Or less than D. equal or larger than

Maintenance activities include ______. ①making enhancements to software products ②developing a new software product ③correcting problems ④adapting products to new environments

根据《联合国销售合同公约》的解释，接受必须用声明或行动表示出来，沉默或不行动本身不等于接受。（）

双扩试验平板法中，若抗体含量较大，则反应沉淀线应

Passage TwoQuestions 30 to 32 are based on the passage you have just heard.

A. less than
B. larger than
C. equal Or less than
D. equal or larger than