Throughout history man has had to
accept the fact that all living things must die, hut people now live longer than
they used to. Yet, all {{U}} (62) {{/U}} things still show the effect of
aging, which will eventually {{U}} (63) {{/U}} death. The body and the
{{U}} (64) {{/U}} , they do not function as well as they {{U}} (65)
{{/U}} in childhood and adolescence(青春期). The body provides less
{{U}} (66) {{/U}} against disease and is more prone(易于……的) {{U}} (67)
{{/U}} accident. A number of related causes may {{U}} (68) {{/U}} to aging. Some cells of the body have a {{U}} (69) {{/U}} long life, but they are not {{U}} (70) {{/U}} when they die. As a person ages, {{U}} (71) {{/U}} of brain cells and muscle cells decreases. Other body cells did and are replaced by new cells. In an aging person the {{U}} (72) {{/U}} cells may not be as v A. so that B. providing that C. in case D. if [单选题]判断低血糖的血浆葡萄糖浓度是
A.<2.8mmol/L B.<3.0mmol/L C.<3.2mmol/L D.<3.4mmol/L E.<3.8mmol/L [单选题]张某因犯盗窃罪被人民法院判处有期徒刑10年,执行6年后被决定假释,张某的假释考验期是()。
A.张某原判刑期的二分之一 B.张某没有执行完毕的刑期 C.不得少于张某原判刑期的二分之一 D.有期徒刑假释考验期为3年 [单选题]根据相关规定,冷水机组的噪声要求控制在( )dh以内。(距机组1m处测量)
A.A.70 B.B.80 C.C.90 D.D.100 [多选题] 安全生产法规定:安全生产工作应当以人为本,坚持安全发展,坚持( )的方针。
A.安全第一 B.预防为主 C.综合治理 D.打防结合 [单选题]常见工艺管线颜色划分正确的是( )。
A.重油黑色 B.水线深绿色 C.消防线黄色 [多选题]优先采购的节能产品应该符合下列()等条件。
A.产品属于国家采信的节能产品认证机构认证的节能产品,节能效果明显 B.产品生产批量较大,技术成熟,质量可靠 C.产品具有比较健全的供应体系和良好的售后服务能力 D.产品供应商符合《政府采购法》对政府采购供应商的条件要求 [单选题]统型空调控制柜电源选择开关置Ⅰ路或Ⅱ路后,交流接触器KM1或KM2不吸合的处理方法之一是:顺线路逐点测量排除的方法是处理( )故障的基本方法,应熟练掌握,但其前提必须是熟知或能看懂电路图。
A.机械 B.制动 C.电器 D.全部 [判断题]在一定温度下,金属导体电阻的大小与导体长度成反比,与横截面积成正比,还与导体的材料有关。(中)( )
A.正确 B.错误 [判断题]【判定题】住宿区办公区等存在火灾轻危险地段,宜配备灭火级别为1A级的灭火器,单具灭火器最大保护面积为100m2
A.正确 B.错误 我来回答: 提交
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