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全真呈现历年考试试题
1、[单选题]Without the friction (摩擦力) between their feet and the ground, people would ______ be able to walk.
2、[单选题]Teachers have no right to force their own opinions ______ the students.
3、[单选题]This building is reported ______ last night.
4、[单选题]Silver is the best conductor of electricity, copper ______ it closely.
5、[单选题]We will never forget the days ______ we spent together, singing and dancing.
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