下列哪一项不属于生物多样性面临威胁的实例?[ ] A.退耕还林、还草 B.引进外

题型:选择题

问题:

下列哪一项不属于生物多样性面临威胁的实例?[ ]

A.退耕还林、还草   

B.引进外来物种

C.加速城市化进程   

D.为了预防禽流感捕杀鸟类

考点:生物多样性面临的威胁及其原因
题型:选择题

短文改错(共10小题;每小题1.5分,满分15分)

此题要求在答题卡上改正所给短文中的错误。请根据上下文对标有题号的每一行作出判断:如无错误,在该行右边横线上画一个勾(√);如有错误(每行只有一个错误),则按下列情况改正:

此行多一个词:把多余的词用斜线(\\)划掉,在该行右边横线上写出该词,并也用斜线划掉。

此行缺一个词:在缺词处加一个漏字符号(∧),在该行右边横线上写出该加的单词。

此行错一个词:在错的词下画一横线,在该行右边横线上写出改正后的词。

注意:原行没有错误的不要改。

Are the years you spent at school best years of your life?

Personally,I found most lesson rather uninteresting.We had to

sit at our desks in silence and paid attention to what the teachers

were saying.They were used to write on the blackboard and ask

us difficult questions.We also had to do plenty of homework,and

hand it on time.We had to wear school uniforms and obey lots of     

rules.I left school as soon as I can and started work.I read books

at the public library,and late I decided to attend college.Now

I really enjoy study because I’m growing old and know what I

want it.When I was at school,I was just the wrong age!     

题型:选择题

下列属于工程项目管理规划大纲编制内容的是( )。

A.项目概况

B.项目进度管理

C.项目收尾管理

D.技术经济指标

E.项目现场平面布置图

题型:选择题

纳税人因有特殊困难,经税务机关核准延期缴纳税款的,需缴一定的滞纳金。( )

题型:选择题

软件的可维护性包括

A.正确性、灵活性和可移植性

B.可测试性、可理解性和可修改性

C.可靠性、可复用性和可用性

D.灵活性、可靠性和高效性

题型:选择题

DDC可以脱离上位机而独立运行,是因为系统编程软件具有()的功能。

A、修改DDC内的各个模块的通道属性

B、向DDC下载控制算法

C、接受DDC模块通道的所有当前值

D、完成DDC入网

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