第4题: [单项选择]What is the main purpose of the tour A. To inform visitors of the park’s history. B. To provide an overview of the park’s main attractions. C. To show visitors remote places in the park. D. To teach visitors how best to photograph wildlife. 参考答案:B 答案解析:[听力原文]11-13
Welcome to Everglade’s National Park. The Everglade is a watery plain covered with s
第20题: [单项选择]男,75岁。全口义齿初戴后,咬合时上腭部疼痛。查:上颌硬区黏膜红肿。首选的处理方法是() A. 调整咬合 B. 硬腭区重衬 C. 重新制作义齿 D. 基托组织面重衬 E. 基托组织面相应处缓冲 参考答案:E 答案解析:本例中全口义齿初戴后出现上颌硬区黏膜红肿疼痛,最可能的原因为上颌硬区未做缓冲而造成的,因此首选的方法是基托组织面相应处缓冲,故选E。
第28题: [单项选择]_________, meteorologists hope to learn how to keep its damage to a minimum. A. Lightning studied by B. Lightning is studied by C. The study of lightning D. By studying lightning 参考答案:D 答案解析:[汉译] 气象学家希望通过对闪电的研究,将其危害控制到最低点。
[注释] “by+分词”结构做方式状语。例如:She earns her living by selling insurance。