第20题: [单项选择]The thirty-day forecast is determined by examining ______. A. upper air levels B. satellite reports C. changing fronts D. daily air maps 参考答案:A 答案解析:本文第二段最后一句明确指出“These 30-day outlooks are base upon an analysis of the upper air levels with often set
第29题: [多项选择]引起化脓性感染的革兰阳性球菌有() A. 葡萄球菌 B. 链球菌 C. 肺炎链球菌 D. 脑膜炎奈瑟菌 E. 淋病奈瑟菌 参考答案:B, C
第30题: [简答题]What are the principles for the selection of language content in language teaching according to the Oral Approach 参考答案: 答案解析:The principle for selecting vocabulary is that an essential core vocabulary is covered.Learners shou