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Cloze 2 One funny thing about all of these different areas is 1 none of them are taxed. You are 2 on the money you earn, and that is it. There is no knowledge tax, for example. You can learn freely throughout life and 3 a huge “ bank account ” of knowledge. No one can steal it or 4 it in any way. 5 , knowledge is the one thing you might be able to take with you to Heaven. All of these alternative types of wealth are different 6 financial wealth, and yet all of them can be equally 7 in their own ways. The point is that the act of purchasing things 8 itself, despite 9 television informs you, and may not be what will bring you maximum happiness in life. Things like good friends, a loving spouse, 10 children, a home built on love, a clear conscience, a 11 goal and a job you truly enjoy bring you contentment 12 lasts and has meaning. These things are often quite 13 the simple-minded teenagers, but as you 14 these things become more important. As you look at the world around you and come to understand what is important to you, keep these things 15 mind. Think about what it is that you enjoy and what 16 you truly happy. See what you find. In thinking about it 17 , you might be surprised by what you discover. Money is 18 important, for you need it to 19 . But it is not the only thing you need, and money itself will not bring lasting happiness to most people. Man does not live by bread 20 .
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参考答案:
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【单选题】点的( )投影与侧平投影的连线垂直于y轴。
A.
右面
B.
侧面
C.
正面
D.
左面
【多选题】点在三投影面体系中的投影规律,下列描述正确的是?(答案个数大于等于3)
A.
点的正面投影与水平投影的连线垂直于 X 轴。
B.
点的正面投影与侧面投影的连线垂直于 Z 轴。
C.
点的水平投影到 X 轴的距离等于该点的侧面投影到 Z 轴的距离
D.
点在水平面和侧平面内的两投影均反映此点的 y 坐标,即 y 坐标相等 。
【判断题】点的侧面投影与水平投影连线垂直于Y轴。
A.
正确
B.
错误
【单选题】脊索动物的脊索与中胚层的形成是在什么时候(    )
A.
原肠期    
B.
背神经管形成之前
C.
背神经管形成的同时    
D.
背神经管形成之后
【判断题】背神经管为脊索动物的中枢神经系统,位于背侧呈管状。脊椎动物中,背神经管的前端膨大分化成脑,其后的神经管部分则为脊髓。脊索与脊柱均为脊索动物的中轴骨骼;脊索与脊柱的结构特点;各自存在的动物类群;脊索被脊柱代替。
A.
正确
B.
错误
【单选题】点的正面投影与侧面投影的连线( )。
A.
垂直于Y轴
B.
垂直于X轴
C.
垂直于Z轴
D.
平行于Z轴
【单选题】脊索动物的三大特征是( )。
A.
脊椎、咽部鳃裂、背神经管
B.
脊索、咽部鳃裂、背神经管
C.
脊索、咽部鳃裂、腹神经管
D.
脊椎、咽部鳃裂、腹神经管
E.
脊索、无鳃裂、背神经管
【简答题】脊索和背神经管为脊索动物所特有的结构,在( )类群中脊索和背神经管只存在于幼体,成体退化或消失;在( )类群中脊索只存在于胚胎阶段。
【简答题】背神经管 脊索
【判断题】脊索动物 的 背神经管 在高等脊索动物,神经管分化为脑和脊髓两部分 。
A.
正确
B.
错误
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