题目内容
（请给出正确答案）
Maintenance activities include(74)。
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
安装简答题APP，拍照搜题省时又省心！
更多“Maintenance activities include…”相关的问题
The best title for this passage would be______.
A．Brain Waves
B．Sleep Cycles
C．Daily Activities
D．Body Activities
The method of preventing asthma is to______.
A．reduce exposure to schools
B．do more activities at home
C．reduce exposure to heavy traffic zones
D．understand the micro-environments
Why does the author say "spring cleaning can't wait"？
A．Because there will be more activities when it gets warmer
B．Because the air is fresher and the breeze is lighter.
C．Because the whole family is full of energy at spring time.
D．Because the snow is melting and the ground is thawing.
Older people are generally advised to ______ .
A．keep fit by going in for physical activities
B．keep mentally active by challenging their brains
C．maintain mental alertness through specific training
D．maintain a balance between individual and group activities
What mainly attracts many people to return to campus for reunion？
A．The variety of activities for class reunion.
B．The special status their university enjoys.
C．Shared experience beyond the campus.
D．Shared undergraduate experience on campus.
Which of the following can best summarize the main idea of the passage？
A．Sporting activities satisfy the desire of modern man to exercise hunting skills which his forefathers developed for survival.
B．It is hunting that provides human beings with simpler ways of obtaining meaty meals.
C．Farming is very important in human civilization because it saves human beings from risks and uncertainties of hunting for survival.
D．It is farming that gives human beings enough leisure time for sporting activities.
A、perfective maintenance
B、adaptive maintenance
C、corrective maintenance
D、none of the above
为了保护您的账号安全，请在“简答题”公众号进行验证，点击“官网服务”-“账号验证”后输入验证码“”完成验证，验证成功后方可继续查看答案！
微信搜一搜
简答题
微信搜一搜
简答题
如搜索结果不匹配，请 
