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【单选题】
存水弯的作用是（）。A.
储存备用水
B.
美观
C.
阻止管道气体窜入室内
D.
节省材料
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【简答题】 you feel interested 2.an occasion when a large group of people protest about sth. 3.an elected official who is the political head of a state in the US 4.holding different views to a government ...
【简答题】B. Listen again. Complete the statements and answer the questions. 1. Statements 1) The family is a group of people related by , living together or with one another for __. 2) The purpose of a family ...
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