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【简答题】
软件生存周期是指一个软件从提出开发要求开始直到该软件报废为止的整个时期。通常，软件生存周期包括______、______、______、______、______、______、______等活动，可以将这些活动以适当方式分配到不同阶段去完成。
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反馈参考答案：
举一反三
【单选题】Only then ______ how much damage had been caused.
A.
had she realized
B.
she realized
C.
did she realize
D.
she had realized
【单选题】She said she _______ the new coat for only a week. [ ]
A.
has bought
B.
had bought
C.
has had
D.
had had
【简答题】食品添加剂的名词解释_____。
【单选题】Only then how much damage had been caused [ ]
A.
did she realize
B.
she realized
C.
had she realized
D.
she had realized
【单选题】Only then____that she had made a mistake
A.
she realized
B.
did she realize
C.
had she realized
D.
she had realized
【简答题】名词 解释 : LD50 、 MNL 、 ADl 2 、 简述食品添加剂的基本要求 。
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