患者女，78岁，肢体无力进行性加重，四肢休息时出现震颤，生活自理能力下降晚期该

— Mum, Must I do my homework first today?      

— No, you _____. You _____ watch TV or play with your friends, too. [ ]

A. mustn't; may

B. can't; can

C. don't have to; can

D. needn't; must

关于人类起源的证据，下列说法正确的是

A．达尔文的进化论能证明人类的起源

B．古书及关于人类的传说都证明了人类的起源

C．古人类的化石，包括遗体、遗物和遗痕，是人类进化的直接证据

D．通过模拟实验可以证明人类的起源

______不是企业第一领导者的职责。

A．审定安全生产规划和计划，确定安全生产目标值；按照国家规定保证所需的经费，有计划地解决重大隐患和职业危害，不断改善劳动条件

B．主持召开企业定期的安全生产工作会议，研究本企业安全生产工作，做出相应决策，组织实施

C．按国家规定，确定本单位安全工作机构和安技干部的编制

D．组织领导安全生产检查，落实整改措施，及时解决生产中不安全的问题

Cooperation is the common endeavor of two or more people to perform a task or reach a jointly cherished goal. Like competition and conflict, there are different forms of cooperation, based on group organization and attitudes.
In the first form, known as primary cooperation, group and individual unite. The group contains nearly all of each individual’s life. The rewards of the group’s work are shared with each member. There is an interlocking identity of individual, group, and task performed. Means and goals become one, for cooperation itself is valued.
While primary cooperation is most often characteristic of preliterate societies, secondary cooperation is characteristic of many modern societies. In secondary cooperation, individuals devote only part of their lives to the group. Cooperation itself is not a value. Most members of the group feel loyalty, but the welfare of the group is not the first consideration. Members perform tasks so that they can separately enjoy the fruits of their cooperation in the form of salary, prestige, or power. Business offices and professional athletic teams are examples of secondary cooperation.
In the third type, called tertiary cooperation or accommodation, latent conflict underlies the shared work. The attitudes of the cooperating parties are purely opportunistic; the organization is loose and fragile. Accommodation involves common means to achieve antagonistic goals; it breaks down when the common means cease to aid each party in reaching its goals. This is not, strictly speaking, cooperation at all, and hence the somewhat contradictory term antagonistic cooperation is sometimes used for this relationship.

The underlined word "cherished" in Paragraph 1 is closest in meaning to ______.

A．prized

B．based on

C．defined

D．set up

Ⅲ度烧伤创面的覆盖物应用有哪些?