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【单选题】
人类为了生存和发展,必须通过适应和改造外部环境去取得必需的资源,必须通过 个人或集体的劳动为自己或他人提供需要的产品和劳务,这说明人类活动具有( )
A.
目的性
B.
实践性
C.
依存性
D.
知识性
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举一反三
【单选题】Which Act first set a large scale of opposition in the colonies?
A.
The Sugar Act of 1764
B.
The Stamp Act of 1765
C.
The Quartering Act of 1765
D.
The Tea Act of 1773
【简答题】Task 4 Directions: The following is a list of terms used in Safety Management. After reading it, you are required to find out the items equivalent to those given in Chinese in the table below. Then yo...
【简答题】Task 4 Directions: The following is a list of terms used in Safety Management. After reading it, you are required to find out the items equivalent to those given in Chinese in the table below. Then yo...
【简答题】公差标准是对__的限制性措施,__是贯彻公差与配合制的技术保证。
【简答题】设n元线性方程组Ax=b,其中 (1)证明行列式|A|=(n+1)an; (2)当a为何值时,该方程组有唯一解,并求x1; (3)当a为何值时,该方程组有无穷多解,并求通解.
【多选题】公差标准是对 [填空(1)] 的限制性措施 [填空(2)] 是贯彻公差与配合制的技术保证
A.
误差
B.
标准化
【单选题】如图所示运算电路,当输入电压ui= 1mV时,则输出电压uO为( )。【图片】
A.
运放输出的正饱和值 u O (sat)
B.
运放输出的负饱和值- u O (sat)
C.
u i 与运放开环放大倍数 A u 的乘积
D.
不确定
【单选题】Under the Carriage of Goods by Sea Act of 1936,a vessel will be liable for damage to cargo when the damage arises from ______.
A.
An act of war
B.
Lack of ventilation in transit
C.
Perils of the sea
D.
An error in navigation
【简答题】在 word2007 窗口中设置段落对齐方式的方法共有 种
【简答题】在Word2007窗口中设置段落对齐方式共有(____)种。
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