主页
学科
搜索
账户
常见问题
当前学科:高处作业
题目:
判断题
附着升降脚手架架体必须在附着支承部位沿全高设置定型加强的竖向主框架。()
A
对
B
错
答案:
<查看本题扣1积分>
查看答案
答案不对?请尝试站内搜索
推荐知识点:
结合设备的实际,审查潜在供货商的资质文件主要要考虑哪些情况?
我国会计学界对管理会计定义提出的主要观点有()
热电偶的均质导体定律的内容?
肠阿米巴病的主要传播途径是()。
Space is a dangerous place, not only because of meteors(流星) 【C1】______be-cause of rays from the sun and【C2】______stars. The atmosphere again acts【C3】______our protective blanket on【C4】______. Light gets through, and this is essential【C5】______plants to make the food which we【C6】______. Heat,【C7】______, makes our environments tolerable and some ultraviolet(紫外线的)rays penetrate the【C8】______. Cosmic(宇宙的)rays of various kinds come【C9】______the air from outer space, but【C10】______quantities of radiation from the sun are screened off.【C11】______men leave the atmosphere they are【C12】______to this radiation but their spacesuits or the walls of their spacecraft, if they are inside,【C13】______prevent a lot of radiation damage. Radiation is the greatest known danger to explorers in【C14】______. Doses of radiation are measured in【C15】______called "rems(雷姆)". We all【C16】______radiation here on earth from the sun, from cosmic rays and from radioactive minerals. The "【C17】______" dose of radiation that we receive each year is about too milli-rems; it【C18】______according to where you live, and this is a very rough estimate. Scientists have reason to think【C19】______a man can【C20】______far more radiation than this without being damaged; the figure of 60 rems has been agreed on.【C1】A.but alsoB.ever soC.as wellD.or so
5岁女孩,发热1个月、伴双下肢疼痛1周入院。体检:体温38.5℃,稍苍白,下肢有少许散在出血点,浅淋巴结易触及,如绿豆至黄豆大,心、肺无异常,肝肋下2cm,脾不肿大,双下肢无明显关节红肿,神经系统检查无异常。血红蛋白98g/L,白细胞数12×10/L,中性粒细胞0.30,淋巴细胞0.70,骨髓细胞学检查证实为急性淋巴细胞白血病。该患儿总的治疗疗程需()
3个月女孩,生后有窒息,吃奶少,睡眠时间少,安静,少哭,少动,大便3~4天一次,干燥,皮肤温度低,心率100次/分,心音低钝,腹膨隆,有脐疝。目前要做的检查是()
维生素A的含量在动物内脏中都较高,以()为最高。
离心泵起动后,随着阀门的逐渐开大,电机电流()。
()是博客中最基本的形式。