第6题: [单项选择]People are accustomed to think that a man in uniform______. A. suggests quality work B. discards his social identity C. appears to be more practical D. looks superior to a person in civilian clothes 参考答案:A 答案解析:依据第二段第三行内容。
第30题: [单项选择]将一株植物水平放置,茎弯曲向上生长,根弯曲向下生长,这与重力影响生长素的分布和根、茎对生长素的敏感性不同有关。下列分析正确的是() A. c处生长素浓度较d处高,根弯曲向下生长 B. b处生长素浓度较a处低,茎弯曲向上生长 C. a处生长素浓度较b处高,茎对生长素敏感性高,a处生长受抑制,b处生长快,茎弯曲向上生长 D. d处生长素浓度较c处高,d处生长受抑制,c处生长快,根弯曲向下生长 参考答案:D