单选题：According to the passage, the average age of the fleet of De

题目内容：

According to the passage, the average age of the fleet of Delta/Northwest is
[A] 10 years.
[B] 14 years.
[C] 16 years.
[D] 20 years.

参考答案：

答案解析：

Such facts as rain, snow, storm and wind are all (phenomenon

Such facts as rain, snow, storm and wind are all (phenomenon) ________ of nature

分类：专四题型：单选题

It is (believe) _____ that you have been 56 years old. You look much younger tha

分类：专四题型：单选题

The idea that museum could mean a mountain or an object originates fromA．the Rom

分类：专四题型：单选题

From the passage we can infer that the relationship between Ray and his parents

分类：专四题型：单选题

Which of the following adjectives does NOT describe Ray’s hometown?A．Lifeles B．R

分类：专四题型：单选题