第10题: [单项选择]The new shirt ______ him 60 dollars. A) paid C) took B) spent D) cost 参考答案:D 答案解析:句子意为:这件新衬衣花了他60元。本题测试单词的用法。pay,spend,cost都可以指花钱,但是pay,spend的主语是人,而cost的主语是物。
第12题: [单项选择]OSI代表()。 A. Organization for Standards Institute B. Organization for Internet Standards C. Open Standards Institute D. Open Systems Interconnection 参考答案:D