问题
多项选择题
双系统包括（）。
A、单功能双系统
B、多功能双系统
C、局部简化双系统
D、完整简化双系统
答案
参考答案：A, B, C, D
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双系统包括（）。
A、单功能双系统
B、多功能双系统
C、局部简化双系统
D、完整简化双系统
参考答案：A, B, C, D
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| How men first learnt to invent words is unknown; 1 ,the origin of language is a mystery. All we really know is that men, 2 animals, somehow 3 certain sounds to express thoughts, actions, and things, 4 they could communicate with each other; and that later they agreed 5 certain signs, 6 letters, which could be combined to represent those sounds, and 7 could be written down. These sounds, 8 spoken, or written in letters, we call words. The 9 of words, then, lies in their associations-the things they bring up before our minds. Words become filled with 10 for us by experience. 11 we live, the more certain words recall to us the glad and sad events of our 12 and the more we read and learn, the more 13 words that mean something to us increases. Great writers are those 14 not only have great thoughts but also 15 these thoughts in words which appeal powerfully to our minds and emotions. This charming and telling use of words is 16 we call literary style. Above all, the real poet is a matter of 17 . he can convey (传达) his meaning in words which sing like music, and which by their position and association can 18 men to tears. We should therefore learn to 19 our words carefully and use them accurately, 20 they will make our speech silly and vulgar (粗俗的). | ||||
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