更多“存在()气体场所使用时，应选用防爆性能的报警仪。”相关的问题
国际发展模式中的欧洲模式的特点就是（）
A.各司其职，分层面完成交钥匙工程B.一揽子交钥匙工程C.采购与成套设计相结合D.仿造机器人
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在当事人提出请求的情况下，下列哪些案件应当适用听证程序( )
A．当事人对行政机关作出的吊销卫生许可证处罚不服的
B．当事人对行政机关作出的罚款2000元的处罚不服的
C．当事人对行政机关作出的警告处罚不服的
D．当事人对行政机关作出的暂扣营业执照处罚不服的
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因变更、换证、吊销、缴销等原因收回、作废的《药品经营许可证》应建档保存()。
A．1年
B．2年
C．3年
D．5年
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病例摘要：男性，60岁，冠心病8年。6小时前胸骨后为压榨性剧痛，并向左臂放射。先后含硝酸甘油4次，疼痛稍减轻，烦躁不安，出汗。查体：急性痛苦面容，体温36.5℃，血压为13.3/9.3kPa（100/70mmHg），脉率110次/分；心界不大，律齐，心音低，未闻奔马律及杂音；双肺少许湿性啰音；肝脾未触及。最可能的诊断是（）。
A.变异型心绞痛 B.急性左心衰 C.心包积液 D.急性心肌梗死 E.肺动脉栓塞
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使用电热水器和热泵热水器将520kg的水从15℃加热到55℃，如果电热水器电效率为90％，热泵COP=3，试问热泵热水器耗电量与电热水器耗电量之比为下列何值（）
A.20％左右 B.30％左右 C.45％左右 D.60％左右
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老年人用氨基糖苷类药物时应谨慎，主要是因为老年人（）。
A.肾功能降低，药物半衰期延长，耳、肾毒性增加 B.血浆蛋白含量降低，使游离性药物增加 C.对药物处于高敏状态，影响中枢神经系统的功能 D.消化腺分泌减少，药物吸收增加 E.肝功能降低，使血药浓度升高
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气之精为A.全目B.瞳仁C.黑睛D.白睛E.眼络
气之精为A.全目B.瞳仁C.黑睛D.白睛E.眼络
A.全目B.瞳仁C.黑睛D.白睛E.眼络
B.瞳仁C.黑睛D.白睛E.眼络
C.黑睛D.白睛E.眼络
D.白睛E.眼络
E.眼络
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与未服用抗凝药物的人群相比，服用抗凝药物的人群使用NSAID可增加胃肠道出血穿孔的风险达（）倍？
A.13
B.5
C.2
D.6.4
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关于椎间盘的功能叙述不正确的是
A．保持脊柱的高度B．对纵向负荷起缓冲作用C．对纵向拉伸起保护作用D．维持后方关节突间一定的距离和高度，保持椎间孔的大小E．维持脊柱的生理曲度
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根据皮亚杰的观点,感知运动阶段的儿童,其认知发展主要是( )。
A. 感觉和知觉分化 B. 感觉与动作分化 C. 动作与语言分化 D. 形象与表象分化
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Before high school teacher Kimberly Rugh got down to business at the start of a recent school week, she joked with her students about how she’d had to clean cake out of the corners of her house after her 2-year-old son’s birthday party. This friendly combination of chitchat took place not in front of a blackboard but in an E-mail message that Rugh sent to the 145 students she’s teaching at the Florida Virtual School, one of the nation’s leading online high schools. The school’s motto is "any time, any place, any path, any pace". Florida’s E-school attracts many students who need flexible scheduling, from young tennis stars and young musicians to brothers Tobias and Tyler Heeb, who take turns working on the computer while helping out with their family’s clam-farming business on Pine Island, off Florida’s southwest coast. Home-schoolers also are well represented. Most students live in Florida, but 55 hail from West Virginia, where a severe teacher shortage makes it hard for many students to take advanced classes. Seven kids from Texas and four from Shanghai round out the student body. The great majority of Florida Virtual Schoolers—80 percent are enrolled in regular Florida public or private high schools. Some are busy overachievers. Others are retaking classes they barely passed the first time. The school’s biggest challenge is making sure that students aren’t left to sink or swim on their own. After the school experienced a disappointing course completion rate of just 50 percent in its early years, Executive Director Julie Young made a priority out of what she calls "relationship-building," asking teachers to stay in frequent E-mail and phone contact with their students. That personal touch has helped: The completion rate is now 80 percent. Critics of online classes say that while they may have a limited place, they are a poor substitute for the face-to-face contact and socialization that take place in brick-and-mortar classrooms. Despite opportunities for online chats, some virtual students say they’d prefer to have more interaction with their peers. Students and parents are quick to acknowledge that virtual schooling isn’t for everyone. "If your child’s not focused and motivated, I can only imagine it would be a nightmare," says Patricia Haygood of Orlando, whose two daughters are thriving at the Florida school. For those who have what it takes, however, virtual learning fills an important niche. "I can work at my own pace, on my own time," says Hackney. "It’s the ultimate in student responsibility."
A.what taken as the guiding principle of the Florida Virtual SchoolB.words placed at the beginning of a book or a chapterC.a slogan put on the wallD.words used in advertisements
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王国维的创新研究方法主要体现在（）。
A、理念创新，开风气之先
B、方法创新
C、操作创新，重治学方法
D、规范创新，求会通境界
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属于碘的毒性的是（）。
A.碘涂抹于皮肤粘膜有烧灼感
B.碘可杀灭细菌
C.碘有金属光泽
D.碘有腐蚀性
E.有机物可降低碘的杀菌作用
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教练式团队领导风格的特点是（）。
A.高指挥、低支持
B.高指挥、高支持
C.低指挥、高支持
D.低指挥、低支持
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为患者连接心电监护仪时一般选择（）导联
A.Ⅰ
B.Ⅱ
C.Ⅲ
D.Ⅳ
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