第14题: [单项选择]A viscosity regulator used for an engine is usually provided in order to () for an engine burning heavy fuel oil. A. regulate the fuel supply B. maintain a constant fuel viscosity at the fuel valves C. maintain efficient cooling D. alter the fuel density 参考答案:B
第16题: [单项选择]What does Tom suggest that they do after dinner A. They will go to the Grill. B. They will go to the library. C. They will go swimming. D. They will walk home. 参考答案:B 答案解析:在第三轮对话中男士让女士和他去吃饭,说吃饭的地方在图书馆隔壁,并且说:I’ll go over there with you after dinner,因此答案是[B]。