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【单选题】
设 为等边三角形 的中心,则向量 是( )
A.
有相同起点的向量
B.
平行向量
C.
模相等的向量
D.
相等向量
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举一反三
【单选题】People enjoy listening to music,______.
A.
though they are receiving a lot of decibels of sound in fact
B.
because it does not have any negative effect
C.
because they do not have to tolerate the noise around them
D.
even though it is sometimes unpleasant hearing strange sounds
【多选题】1-在进行自然条件分析时,调查( )等,地形复杂的应分区域说明地形变化情况,不同地貌单元划分及微地貌形态的分布特征。
A.
地形地貌
B.
地面高程
C.
地面坡度
D.
坡向
【多选题】创新的三种原理包括()
A.
创新是人脑的一种机能和属性,是与生俱来的
B.
创新是人类自身的本质属性,是人人皆有的
C.
创新是人类特有的本质属性,无法改变
D.
创新是可以被某种原因激活或教育培训引发的一种潜在的心理品质,是可挖掘和提升的潜力
【单选题】It was once thought that air pollution affected only the area immediately around large cities with factories and heavy automobile traffic.Today,we know that although these are the areas with the worst...
A.
exists merely in urban and industrial areas
B.
may have an effect on the entire earth
C.
causes widespread damage in the countryside
D.
is not so serious as it used to be
【简答题】实验8-1实现图的邻接矩阵和邻接表存储 目的:领会图的两种主要存储结构和图基本运算算法设计。 内容:编写一个程序,设计带权图的邻接矩阵与邻接表的创建和输出运算,并在此基础上设计一个主程序,完成如下功能: (1)建立如图所示的有向图的邻接矩阵并输出。 (2)建立如图所示的有向图的邻接表并输出。 (3)销毁图的邻接表。
【多选题】计轴设备分为室内设备和室外设备,其中室内设备由()构成的计轴器主机系统。室外设备有传感器(磁头)和电子连接箱;
A.
传感器
B.
运算器
C.
UPS电源
D.
计算机
【单选题】Task 1 Compare these two texts on mobile phones. How are opinions and ideas presented in each of the texts? Which do you think is more academic? Text 1 I think that mobile phones have a negative eff...
A.
Text 1
B.
Text 2
【简答题】Libraries play an important role in our lives. Now, there’s even a law that can help us better enjoy the services that libraries provide. China’s first national public library law has gone into effect...
【简答题】精磨时,应该选用磨粒号 的砂轮。
【简答题】计轴器的室外设备有( )和( )。
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