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【简答题】
语法填空练习六 People 1 . ______ (live) in different countries made different kinds of words. Today there are about fifteen hundred 2 . ______ ( language ) in the world. Each lan g uage contains many thousands of words. A very large dictionary, for example, contains four 3 . _____ five hundred thousand words. But we do not need 4 . ______ these. To read short stories you need to know only about two thousand words. Before 5 . ______ (leave) school, you will learn only one thousand or more. The words you know are called your vocabulary. You should try to make your vocabulary 6 . ______ (big). Read as many books as we can. There are a lot of books 7 . ______(write) in easy English. You will enjoy them. When you meet 8 . ______ new word, look it 9 . ______in your dictionary. Your dictionary is your 10 . ____ (much) useful book.
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【多选题】关于尺、桡骨的描述,正确的是
A.
桡骨上端粗大,尺骨上端细小
B.
尺骨位于外侧而桡骨位于内侧
C.
桡骨表面有尺切迹,尺骨表面有桡切迹
D.
桡骨茎突位于桡骨下端外侧
【单选题】关于亚马孙河的正确叙述是 [ ]
A.
是世界上水量最大、流域面积最广的河流，长度仅次于尼罗河，居世界第二位
B.
每年都有两个月的结冰期
C.
巴西境内1/3为巴西高原，2/3为亚马孙平原
D.
是世界上水量最大、流域面积最广的河流，长度为6400多千米，居世界第一位
【单选题】关于尺、桡骨的描述,正确的是
A.
桡骨靠内,尺骨靠外
B.
尺骨上端称尺骨头,能在体表触及
C.
桡骨头的周围有耳状关节面
D.
桡骨颈的内下侧有桡骨粗隆
E.
尺骨与桡骨以韧带和骨间膜相连,两者之间无关节连接
【单选题】读下图，对该国的有关叙述，正确的是 [ ]
A.
a河是亚马孙河，该河流域内分布着世界上面积最大的热带雨林
B.
b处是世界上面积最大、地势最高的高原
C.
绝大部分地区在热带，热带经济作物产量均为世界第一位
D.
人口绝大多数都分布在北部的平原地区
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