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根据中国政府的规定，对单方面免办签证的外国人，在中国停留（）日以内的免办签证。
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Im a 43-year-old mother of three young kids with a Master of Science degree. I also【C1】______pizzas for a living. I started doing it after【C2】______home with my children for four years. Caring for your kids all day is a【C3】______opportunity for many women, but it wasnt right for me. I began suffering from【C4】______and decided to get a job so Id have more of my own identity. Now I work nights when my husband is home so we dont have to【C5】______child care. After I learned the basics of pizza delivery—like getting the【C6】______together and not getting lost—I began my new "career" . Being【C7】______and organized by nature, 1 studied the tipping patterns of the town. Our community had a small, expensive liberal-arts【C8】______full of students who ordered lots of pizzas. Most of the kids were friendly and polite.【C9】______Friday and Saturday nights, some of the dorms had huge parties.【C10】______the stairs were sticky from beer and the music was so loud they couldnt【C11】______me knock on the door, the crowds of happy students shouting, "Pizza! Pizza!" always let me through. The first few days of each month, one of us drivers would take【C12】______turn covering the public-housing developments. These customers did not always tip well,【C13】______I always liked seeing the children and adults sitting outside and【C14】______the evenings when the weather was nice. I also deliver to multimillion dollar homes now, but the【C15】______I make in tips has stayed the same. As I【C16】______to these beautiful houses, its easy to fantasize about a【C17】______tip. The person who answers the door always【C18】______young and, like the members of my own family,【C19】______educated. All I usually get is a brief "Thank you" and a dollar or two. People might say Im crazy to waste my education, but I have【C20】______most of them dont: a job I love.【C1】A．buyB．waitC．turnD．deliver
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鸡毛掸是清除高处或立面灰尘的工具，是（）灰尘的工具。
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下列哪项不是输卵管绝育术的远期并发症（）。
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沿海国在毗连区中具有哪些管制权？
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8086/8088CPU中有几个通用寄存器？有几个变址寄存器？有几个指针寄存器？通常哪几个寄存器亦可作为地址寄存器使用？
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下面哪一项不属于烹饪原料的固有品质（）。
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现代外科学不包括（）
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男性，62岁。反复发作性咳喘20余年。近年来症状持续，动则气急。1周来因上呼吸道感染导致恶化入院。体检：患者神志恍惚，紫绀。两肺有散在的哮鸣音。心脏无异常发现。动脉血气（吸氧1.5L／min）分析示：pH7.28，PaCO29.3kPa（70mmHg），PaO28kPa（60mmHg）。关于本例是否应用和如何应用人工机械通气下列哪种意见较为合理（）