A. Pessimism. B. Hopeful. C. Indifferent. D. Doubtful. 参考答案:A 答案解析:[试题分析] 态度判断题 [详细解答] 关键语句:"Scientists say the problem is expected to worsen in the coming years as
第15题: [单项选择]下列关于子宫下段的叙述中,哪项不正确 A. 子宫下段系子宫峡部形成,非孕时长1cm B. 临产后由于子宫收缩及回复的影响,峡部被拉长而形成子宫下段 C. 子宫下段常被产科医生选择为剖宫产术子宫切开处 D. 子宫下段为被动扩张段,随产程进展而越来越长越薄 E. 分娩受阻时,生理性缩复环上升达脐或脐上,形成病理性缩复环 参考答案:B
第18题: [单项选择]According to the passage, what is the drawback of breast pocket phones A. They are fragile and easily damaged. B. The information stored is limited. C. They are not popular with business people. D. Few people can afford them. 参考答案:B