代理记账机构为委托人编制的财务会计报告，只需经委托人签名并盖章后，就可以对外提供。(

男，24岁，淋雨后发热，咳嗽，并咳铁锈色痰，可能的病因为（）

A.胸膜炎

B.肺脓肿

C.气胸

D.肺炎球菌性肺炎

E.肺结核

(12分) 小刚、小军、小红对一久置的NaOH白色粉末的成分进行探究。

三位同学都作出以下的猜想：

Ⅰ．①可能是NaOH； ②可能是Na₂CO₃； ③可能是NaOH与Na₂CO₃的混合物。

做出②③猜想的依据是______________________________（用化学方程式表示）

Ⅱ．为了验证①②③猜想，他们分别做了下面的实验。

（1）小刚取少量白色粉末于试管中，再滴加稀HCl，有气泡产生，由此可推出白色粉末中一定含有            ，可肯定猜想________（填序号）是错误的。

（2）小军又取少量白色粉末溶于水，向所得溶液中滴加酚酞试液，溶液变为红色。由此小军结合小刚的实验，认为猜想③是正确的。小红却认为小军的所得结论不确切，因为                                                

（3）为探究白色粉末是否含有NaOH，小红设计了如下实验方案：

①沉淀B的化学式为____________。

②在操作1中要用到玻璃棒，其作用是_______________；

在操作2中，除要用到铁架台（带铁圈）、烧杯、滤纸、玻璃棒外，还需补充的玻璃仪器是 _______    。

③小刚认为小红的这个方案也有问题，理由是_________________________________。

Ⅲ．小刚对小红的实验作了正确的改进后进行了实验，实验现象和小红的一致。由此确定猜想③是正确的。小刚改进的方法是_______                           

《中国南方电网电力调度管理规程》规范性引用文件为哪些？

Beliefs are shared ideas about how the world operates. They may be’ summaries and interpretations of the past, explanations of the’ present or predictions for the future, and may be based on common sense, folk wisdom, religion, science, or some combination of these. Some beliefs apply to intangible (无形的) things (for example, whether the human spirit lives on after .death). All cultures distinguish between ideas for which people have reasonable proof (for Americans, for ex ample, the idea that smoking increases the risk of cancer) and ideas that have not been, or cannot be, tested (for Americans, for example, the idea that there is intelligent life on other planets). Where and how people draw the line varies, however.
Bemuse beliefs shape both personal and social experience, basic differences in beliefs can account for some of the problems Vietnamese immigrants have had in American society. One exampie is beliefs concerning the nature of time. People in Western cultures believe time is irreversible (不可回转的). We think of time as a straight line. On every January 1st we add another year to the calendar. Traditionally, the Vietnamese have reckoned time in sixty-yesr cycles. Every sixty years the cycle starts over with .the year with which it began. Such a conception of time suggests that current events are not unique; that things come around again. American beliefs regarding time as linear create the sense that "time is ticking away"; the Vietnamese belief that time is cyclical creates an entirely different state of mind.
Beliefs apply not only to concepts like time but also to mundane (世俗的，世间的) aspects of the material world. Residents of San Francisco were offended greatly to learn that rural immigrants from Laos and Cambodia had been stalking(蹑手蹑脚地走近) their dinner in Golden Gate Park. San Franciscans could not understand how the newcomers could hunt and eat squirrels(松鼠) and stray dogs; the Indochinese(印度支那人) could not understand why San Franciscans did not— a classic case of the same object (in this case, dogs) having different cultural meanings. Even within our own culture we can see great variation in how people think about the same re source. Some people see dogs as working animals, acquired to protect our apartments or livestock; others treat their dogs as special friends or even substitute children.

If you were a Vietnamese, you would believe that time ______.

A．can not be reversed

B．is passing by ticking

C．can be recurred

D．is moving in cycles

PING命令使用了哪种ICMP消息？