哪项措施用于肝硬化食管静脉破裂出血治疗是错误的（） A.吗啡镇静 B.输新鲜血 C.

比一比：人的尊严是一个支撑生命的骨架。有关自尊的名人名言，请写出三句。

（1）________________________________________________________________________

（2）________________________________________________________________________

（3）________________________________________________________________________

当车道上有一辆等待车辆时，可电脑屏幕上显示有2个图标，此时应进行的正确操作是（）。

A.按特情键使用初始化方法

B.先刷等待车辆的通行卡然后进入到特情里使用整车删除方法，删除上一辆车的信息

C.先刷等待车辆的通行卡然后进入到特情里使用整车插入方法

D.正常打印发票收费放行

Almost every day the media discovers an African American community fighting some form of environmental threat from land fills, garbage dumps, petrochemical plants, refineries, bus depots, and the list goes on. For years, residents watched helplessly as their communities became dumping grounds.
But citizens didn’t remain silent for long. Local activists have been organizing under the mantie of environmental justice since as far back as 1968. More than three decades ago, the concept of environmental justice had not registered on the radar screens of many environmental or civil rights groups. But environmental justice fits squarely under the civil rights umbrella. It should not be forgotten that Dr. Martin Luther King Jr. went to Memphis on an environmental and economic justice mission in 1968, seeking support for striking garbage workers who were underpaid and whose basic duties exposed them to environmentally hazardous conditions.
In 1979, a landmark environmental discrimination lawsuit filed in Houston, followed by similar litigation efforts in the 1980s, rallied activists to stand up to corporations and demand government intervention.
In 1991, a new breed of environmental activists gathered in Washington, D.C. , to bring national attention to pollution problems threatening low-income and minority communities. Leaders introduced the concept of environmental justice, protesting that Black, poor and working-class communities often received less environmental protection than White or more affluent communities. The first National People of Color Environmental Leadership Summit effectively broadened what "the environment" was understood to mean. It expanded the definition to include where we live, work, play, worship and go to school, as well as the physical and natural world. In the process, the environmental justice movement changed the way environmentalism is practiced in the United States and, ultimately, worldwide.
Because many issues identified at the inaugural summit remain unaddressed, the second National People of Color Environmental Leadership Summit was convened in Washington, D.C. , this past October. The second summit was planned for 500 delegates ; but more than 1,400 people attended the four-day gathering.
"We are pleased that the Summit Ⅱ was able to attract a record number of grassroots activists, academicians, students, researchers, planners, policy analysts and government officials. We proved to the world that our movement is alive and well, and growing," says Beverly Wright, chair of the summit. The meeting produced two dozen policy papers that show powerful environmental and health disparities between people of color and Whites.

In Paragraph 1, the word "residents" refers to ______ in particular.

A．ethnic groups in the U.S.

B．the American general public

C．African Americans

D．the U.S. working-class

C70、C70H型通用敞车的主要特点是什么？

力在x轴上的投影等于力本身大小，则此力与x轴（）

A、垂直

B、平行

C、相交

D、成60°