主页
学科
搜索
账户
常见问题
当前学科：环保知识竞赛
题目：
题干
试评价市环保局的环境执法行为。
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:
以下哪种证明（）属于申请贷记卡的有效收入证明
银行经营管理实践中所探索的目标是在不同经济环境下，探寻影响商业银行价值的主要因素，进而起到改善商业银行在不同历史时期经营管理的作用。
竣工决算审计依据是什么？
操纵元（Operon）
Revise the following e-mail message. And the formatting of the message is to be scored.TO: Andrea KanaThis message is in response to your recent inquiry about mail costs. Your message of April 30 said that you wanted a brief explanation of what is being done in Mail Services to cut back on overall costs. I can tell you that I've been doing many things to cut costs.For one thing. l' m trying very hard to locate duplicate names and addresses inadvertently included in our mailing lists. This problem is particularly difficult when we merge multiple mailing lists. Another thing l'm doing relates to envelope size. Departments that use envelopes larger than 631 by 1131 are costing us a lot of money. which they do not realize. Therefore. 1 am making a proposal to all departments to limit the envelope size.Finally. l' m looking into the possibility of presorting some of our first- and third-class mail. Mailings that are presorted are charged less.George Miller
（）目前机要通信只传递国家秘密载体纸介质、磁介质类所规定的内容。
移动通信基站接地电阻应不大于（）Ω。
患者，男，15岁，低热，胸痛4天，X线胸片示左下肺类圆形稍高密度影，边缘光滑；胸部CT示左下肺前内基底段类圆形液体密度影，直径约3cm，边缘光滑，其内CT值约12HU，邻近肺组织内见淡片状稍高密度影，抗炎治疗10天后症状明显改善，复查CT见类圆形病灶大小无明显变化，边缘更清楚，邻近淡片状影消散。最可能的诊断为（）.
男性，38岁。左下腹被拖拉机压伤后3天入院。入院时有弥漫性腹膜炎，感染性休克。经积极抗休克治疗后，行剖腹探查术，术中发现腹腔内有黄色脓液和粪便，降结肠下段有一直径0．5cm大小的穿孔，有粪便溢出。正确的手术方式是（）
按演替速率，土地演替可以分为（）演替和（）演替。