第4题: [单项选择]After we made the improvement; there were only ______ as before. A. one-tenth defective products as many B. one-tenth as many defective products C. defective products one-tenth as many D. defective products as one-tenth many 参考答案:B 答案解析:one-tenth和many都是限定词,要置于名词词组之前。
第5题: [单项选择]鼻前庭的后界为( ) A. 鼻阈 B. 后鼻孔 C. 前鼻孔 D. 筛板 E. 额骨鼻突 参考答案:A