第9题: [单项选择]According to this passage, various types of packaging come into existence to ______. A. meet the needs of consumers B. suit all kinds of products C. enhance the market position of products D. introduce new products 参考答案:C 答案解析:从第二段changes of package sizes...used for improving a product’s market position,可以判断不同类型包装的出现是为了巩固产品的市
第13题: [多项选择]2001年11月10日,某地发生一起急性食物中毒事故,报告中毒潜伏期10分钟左右,共有268人中毒,主要症状:口唇、指甲及全身皮肤紫绀,心率加快,头晕、头疼、呼吸急促,恶心呕吐,可疑中毒食物为馒头,面包,海产品鱼,虾。该起事故中毒机理是()。 A. 毒素抑制了机体内呼吸作用,造成的内呼吸窒息 B. 正常血红蛋白失去了输送氧能力 C. 体内高铁血红蛋白大量增加 D. 误服用砷化学品造成 E. 服用有机磷农药造成 F. 误服用毒鼠强农药所致 参考答案:B, C
第18题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. The movie is very horrible. B. He likes this horror movie. C. This movie brought him great surprise. D. He doesn’t think highly of this movie. 参考答案:D 答案解析:[听力原文] W: I’m not surprised you didn’t like that movie at all. It doesn’t worth that money for th