您所在的当前位置：初中政治试题 >

时事热点

> 根据国家空防要求和维护空中飞行秩序需要,中国政府2013年11月23日发表声明，宣布划设防空识别区，并发布航空器识别规则公告和识别区示意图。它是（） A．东海防空识别区 B．渤海防空识别区 C．黄海防空识别区 D．南海防空识别区

问题：

发布时间：2024-09-12

根据国家空防要求和维护空中飞行秩序需要,中国政府2013年11月23日发表声明，宣布划设防空识别区，并发布航空器识别规则公告和识别区示意图。它是（）

A．东海防空识别区 B．渤海防空识别区

C．黄海防空识别区 D．南海防空识别区

参考答案：

提问用户：IA***7uj

可能感兴趣的题目：

1 小华最近出现了夜晚看不清东西（夜盲症）、皮肤干燥等症状，他应该适量补充 [ ] A．维生素A B．维生素B C．维生素C D．维生素D
2 对图中所示现象的分析，不正确是 [ ] A．甲图中弓被运动员用力拉开，说明力可以改变物体的形状 B．乙图中刹车后人的上身向前倾，说明力可以改变物体的运动状态 C．丙图中人推前面的船，自己的船却向后运动，说明力的作用是相互的 D．丁图中热气球匀速向下运动，说明物体受到平衡力的作用
3 红旗中学2009级三个生物兴趣小组的同学分别做了下列探究：探究I：种子萌发需要水分和氧气吗？小娟同学用菜豆种子为材料，设计实验如图1所示（玻璃棒由上至下的A、B、C三粒种子，均为饱满且具有完整活性的胚，杯内为清水，其他条件相同且适宜）．结果，只有种子B萌发．（1）种子A不萌发B萌发，说明种子萌发需要______．（2）种子B萌发C不萌发，种子C不萌发的原因是缺少______．（3）该实验的结论是：种子萌发需要______．探究II：叶片背面和正面的气孔数目一样多吗？小鹏将一片刚摘下的叶片浸在盛有70℃左右热水的烧杯中（如图2），立即观察并比较叶片背面和正面气泡数目的多少（气孔是叶片与外界气体交换的“窗口”，根据气泡数目多少可以判断气孔数目多少）．（1）如果气泡数目背面与正面的相等，说明叶片背面与正面的气孔数目______．（2）如果气泡数目背面比正面的多，说明叶片背面比正面的气孔数目______．探究III：小兰为探究光合作用的条件设计了如下实验：（1）当图甲中试管内的气体充满二分之一左右时，迅速取出试管并将带火星的卫生香伸入管口内．结果卫生香猛烈燃烧起来（如图丙）．该实验说明光合作用产生了______．（2）为探究“进行光合作用的是金鱼藻”，设置了如图乙所示的对照组．该对照组有一处明显错误，请你改正：应去掉图乙中的______．
4 在学习和生活中，你一定积累了不少的成语、名言、谚语等，请按要求填写。 (1)成语：_______，长一智。 (2)名言：少年易学老难成，_______ 。（朱熹） (3)我们常用谚语“_________ ，________ ，再大的困难也能克服。
5 美国南北战争中，林肯政府所要解决的根本问题是 [ ] A．维护国家统一　　 B．争取民族独立 C．解放黑人奴隶　　 D．对外扩张领土
6 新文化运动中陈独秀等人拥护的“德先生”和“赛先生”分别是指 A．民主与科学　 B．民主与法制　 C．民主与共和 D．博爱与人权
7 阅读理解。 Mr. Black was a policeman. He was a kind person. He liked to have a walk in the park after breakfast. It was very cold on a winter morning. Mr. Black was walking along the street when he heard a cry for help. He turned around but could see nobody. He stopped and looked here and there. At the moment, a boy ran up to him. The boy was in such a hurry and he couldn"t say a word except pointing towards the river. Mr. Black ran to the river as soon as possible. Both of them ran along the river and saw a girl in the water. She was holding a piece of wood. It was carrying her away. It was too dangerous. Without a word, Mr. Black took off his clothes as quickly as he could, and jumped into the river. He swam to the girl and took her back near the bank and lifted the girl up, and then the boy helped pull her out of the water. Then they stopped a car and took the girl to the hospital. At last the girl"s life was saved, and she thanked them very much. 1. What do you think of Mr. Black? A.Mr. Black is a kind man. B.Mr. Black is a good policeman. C.Mr. Black liked to have a walk. 2. When did Mr. Black find the girl? A.As soon as he heard the cry for help. B.When the boy ran to him. C.When they ran along the river. 3. Why didn’t the boy say a word? A.He was too worried. B.He was too excited C.He was too sad 4. How was Mr. Black when he came back to the bank. A.His clothes were all wet. B.He felt very cold. C.He was angry. 5. According to the passage, which is right? A.The girl thanked Mr. Black and the boy. B.The boy was the girl’s brother. C.Only the boy sent the girl to the hospital.
8 先化简，再求值： (1+ 1 x-1 )÷ x x2-1 ，其中x= 1 2 +1 ．
9 如图，MN是平面镜，S是一个点光源，P是空间中的一点，请在图中画出由点光源S发出的能过P点的所有光线．
10 下列物质的物理性质正确的是 [ ] A. 液氧（无色液体） B. 高锰酸钾（黑色固体） C. 二氧化硫（无色无味气体） D. 四氧化三铁（黑色固体）