Contrary to popular belief, "falling
stars" are not stars at all, but are meteors, solid bodies that travel throng
space. Meteor, ranging in size from that of a pinhead, to many tons, are visible to the naked eye at night, when the friction between the surfaces of the meteors and of the air, produces heat as the meteors enter the earth’s atmosphere. The intense heat burns up the meteors, which leave a blazing trail of light in their wake. Most meteors do burn up when they enter the earth’s atmosphere, with the exception of the large mete- ors, which are dragged through the earth’s atmosphere by the earth’s gravitational pull. After successful landings upon the earth, these huge bodies are renamed meteorites. Some scientists theorize that thousands of meteors fall to the earth during the daytim A. Because they are large stars. B. Because most of them are burned up, giving a brilliant display of light. C. Because they are close enough to be seen. D. Because they like the moon can reflect the light of some stars. [多选题]零售商业物业承租商选择时应考虑的因素()。
A.承租商管理 B.声誉 C.财务能力 D.承租商组合与位置分配 E.承租商需要的服务 [多选题]国家综合性消防救援队伍消防员的基本职责( )。
A.服从命令,听从指挥,英勇顽强,不怕牺牲,坚决完成任务 B.熟练操作使用和认真维护装备器材,使其经常保持良好状态 C.刻苦训练,熟练掌握业务技能,努力练就过硬本领 D.艰苦奋斗,厉行节约,爱护公物 [判断题]安全生产费用的使用范围包括安全生产适用的“四新”推广应用支出,不含新外观。 ( )
A.正确 B.错误 [单项选择]饭店餐饮部业务运转的起点是()
A. 功能设计与布局 B. 食品原料采购 C. 人员配置 D. 菜单计划 [单项选择]日常我们巡检及监盘过程中看到的压力表显示的压力值是()
A. 绝对压力 B. 表压力 C. 真空 D. 静压 [填空题]《社会抚养费征收管理办法》于2002年9月1日起施行,共()条。
[单选题]AE103型氧气充填泵使用环境温度不大于。( )
A.30℃ B.35℃ C.40℃ D.45℃ [多选题]混凝土结构工程,水泥进场时,应对其品种、代号、强度等级、包装或散装编号、出厂日期等进行检查,并应对水泥的( )进行检验,检验结果应符合现行国家标准《通用硅酸盐水泥》GB175等的相关规定。
A.A.氯离子含量 B.B.强度 C.C.安定性 D.D.凝结时间 [判断题]借款合同可以附最高额抵押合同,综合授信合同.循环授信合同可以附抵押合同。( )
A.正确 B.错误 [简答题]钢按化学成分和质量可分成哪几类?
[单项选择]What did Baker do after he shot at the wood from 50 yards away
A. He drew a target round the hole. B. He brought it in a car. C. He put it in the garden. [单选题]关于脑卒中患者上、下楼梯训练,叙述正确的是( )
A. 上楼梯先上患腿 B. 下楼梯先下健腿 C. 上楼梯时先上健腿,后上患腿;下楼梯时先下患腿,后下健腿 D. 上楼梯时两腿一起上 E. 下楼梯时两腿一起下 [单项选择]女性,26岁,间歇性牙龈出血伴月经过多1年。体检:双下肢可见散在出血点及紫癜,肝脾不大。血红蛋白120g/L,红细胞4.6×1012/L,白细胞5.5×109/L,分类正常,血小板25×109/L首选药物为()
A. 免疫抑制剂 B. 糖皮质激素 C. 达那唑 D. 静脉注射丙种球蛋白 E. 血小板生成素 [单项选择]籍按照()分类,可分为常规地籍和数字地籍。
A. 功能 B. 表现形式 C. 所记载的对象 D. 建立的时序 我来回答: 提交
|