第2题: [单项选择]Which of the following is NOT mentioned as a cause of the current decline in the Mexican economy A. Fewer job opportunities in Mexico. B. Strong ties with the U.S. economy. C. Decline in tourism. D. Decline in tax revenues. 参考答案:A 答案解析:[解析] The Mexican economy went off a cliff in the second three months of 2009, with the gross
第8题: [单项选择]3，15，35，63，( )。 A. 78 B. 99 C. 81 D. 100 参考答案:B 答案解析:[解析] 原数列可化为：22-1，42-1，62-1，82-1，(102-1)。10 第9题: [单项选择]将账簿划分为序时账、分类账、备查账的依据是（） A. 账簿的登记方式 B. 账簿的用途 C. 账簿登记的内容 D. 账簿的外表形式 参考答案:B
第26题: [单项选择]He had lived in Paris for some years ______ he returned to Americ A. A． afterB. untilC. beforeD. while 参考答案:C 答案解析:词义辨析题。after 意为“在……之后”；until 意为“直到……才”；before 意为“在……之前”；while 意为“在……的时候”。本题大意为：在返回美国前，他已经在巴黎住了几年。
