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【单选题】
当 时,变量 是( ),下面的选项哪个是正确的: A、无穷小 B、无穷大 C、有界的,但不是无穷小 D、无界的,也不是无穷大
A.
选择1
B.
选择2
C.
选择3
D.
选择4
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参考答案:
举一反三
【判断题】塔上天馈安装时,天线跳线可在天线安装到抱杆之前连接好,并进行防水处理。可减少高空作业时间,并提高接头连接和防水质量。( )
A.
正确
B.
错误
【单选题】计划规定年产量比一年增加5%,实际增加了6%,则年产量计划完成( )
A.
120%
B.
100.95%
C.
101%
D.
106%
【单选题】9 89. 沉降观测时 , 为了提 高 观测 精度 , 可采用 固 定测 量 人员 、 固定 测 量 仪器和( )的“三固定”方法。
A.
固定测量时间
B.
固定测量周期
C.
固定测量路线
D.
固定测量精度
【单选题】Continuing MedicaJ Education There is increasing recognition of the need for health workers to continue their education through-out their careers. Not only do health workers themselves wish to improve...
A.
Right
B.
Wrong
C.
Not mentioned
【单选题】The underlined sentence “ The health and education... ” means that ______.
A.
most of the taxi drivers have little time to take care of their children
B.
Chinese parents care about the health and education of their children most
C.
lots of children of taxi drivers are in poor condition of health and education
【单选题】The program of Oportunidades is ______.
A.
to solve problems such as education, health, and nutrition in some poor countries
B.
to improve health and scientific technology in poor countries
C.
to solve the shelter problem and education problem in rural families
D.
to solve nutrition, hygiene and cash problems in villages
【单选题】若计划规定年产量比上一年增加5%,实际增加了6%,则年产量计划完成( )
A.
120%
B.
100.95%
C.
101%
D.
106%
【单选题】计划规定年产量比一年增加5%,实际增加了6%,则年产量计划完成( )
A.
120%
B.
100.95%
C.
101%
D.
106%
【判断题】塔上天馈安装时,天线跳线可在天线安装到抱杆之前连接好,并进行防水处理。可减少高空作业时间,并提高接头连接和防水质量。
A.
正确
B.
错误
【单选题】计划规定年产量比上一年增加 5%,实际增加了6%,则年产量计划完成
A.
120%
B.
100.95%
C.
101%
D.
106%
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