题目内容
（请给出正确答案）
[主观题]
IP 地址块 222.125.80.128/26 包含了 （68） 个可用主机地址，
A.14
B.30
C.62
D.126
提问人：网友ashxixi
发布时间：2022-01-06
如搜索结果不匹配，请 
A. 222.125.80.128
B. 222.125.80.129
C. 222.125.80.159
D. 222.125.80.160
题目内容
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第4题
软件权利人与被许可方签订一份软件使用许可合同。若在该合同约定的时间和地域范围内，软件权利人不得再许可任何第三人以此相同的方法使用该项软件，但软件权利人可以自己使用，则该项许可使用是(10)。
A.独家许可使用
B.独占许可使用
C.普通许可使用
D.部分许可使用
第8题
E-R图转换为关系模型时，对于实体E1与E2间的多对多联系，应该将（55）。
A.E1的码加上联系上的属性并入E2
B.E1的码加上联系上的属性独立构成一个关系模式
C.E2的码加上联系上的属性独立构成一个关系模式
D.E1与E2码加上联系上的属性独立构成一个关系模式
第10题
Observe that for the programmer, as for the chef, the urgency of the patron（顾客） may govern the scheduled completion of the task, but it cannot govern the actual completion. An omelette（煎鸡蛋）, promised in two minutes, may appear to be progressing nicely. But when it has not set in two minutes, the customer has two choices—waits or eats it raw. Software customers have had （71） choices.
Now I do not think software （72） have less inherent courage and firmness than chefs, nor than other engineering managers. But false （73） to match the patron's desired date is much more common in our discipline than elsewhere in engineering. It is very （74） to make a vigorous, plausible, and job risking defense of an estimate that is derived by no quantitative method, supported by little data, and certified chiefly by the hunches of the managers.
Clearly two solutions are needed. We need to develop and publicize productivity figures, bug-incidence figures, estimating rules, and so on. The whole profession can only profit from （75） such data. Until estimating is on a sounder basis, individual managers will need to stiffen their backbones and defend their estimates with the assurance that their poor hunches are better than wish derived estimates.
71
A. no
B.the same
C.other
D.lots of
