患儿，5岁。舌苔花剥，经久不愈，状如"地图"。病机多为( ) A．胃之气阴不足

老师请化学兴趣小组的同学帮助他将失去标签的碳酸钠、稀盐酸、氯化钠、氢氧化钠和氯化钙溶液鉴别出来．重新贴好标签．为了区分这五种溶液，将试剂瓶编号为A，B，C，D，E，该小组同学进行了如下探究：

	实验步骤	实验现象	实验结论
步骤一		B，C溶液呈现红色 A，D，E溶液颜色无明显变化	B，C溶液显　     　性
步骤二		B，C溶液红色均消失， 且C溶液中产生大量气泡	可确定B为 　     　溶液；A与C的反应通常 不用作实验室制取气体的 原因是
步骤三		E中无明显现象， D中的现象为	确定E为氯化钠溶液， 则D溶液与所加试剂发生反应的化学方程式为

某企业为了完成上级部门下达的指标，把在第二年一月才发货的预收款作为本年度收入入账，其行为属于()。

A．随意改变会计要素的确认和计量标准

B．提前结账日结账

C．随意改变财务会计报告的编制依据

D．在编制年度报告前未按规定全面清查资产

分配阀的紧急放风阀两个排风堵装错或堵塞会造成：（）。

A、大闸制动区时列车管不排风

B、大闸制动区时，起紧急制动

阅读理解。

     NEW YORK CITY?A hurricane warning has been given for New York City. Forecasters say Hurricane

Irene could cause widespread flooding, power failure and billions of dollars in damage. About 65 million

Americans live in Hurricane Irene's projected path -many of whom have been evacuated.

     In New York City, Mayor Michael Bloomberg has ordered the city's first-ever evacuation. Roughly

250,000 people have been told to leave their homes in low-lying areas, including the Wall Street financial

district.

     WASHINGTON D.C.-On Aug.24, 2011, Apple announced that Mr. Steve Jobs, who has battled cancer

for several years, was stepping down as the CEO but would serve as chairman.

     In January, he had announced that he was taking a medical leave of absence from Apple. In announcing

his leave, he turned daily oversight of the company over to the chief operating officer, Timothy D. Cook,

and it was Mr. Cook whom Apple named to succeed him as the next CEO of the company.

     TRIPOLI-Opposition forces in Libya say they control more than 90 percent of the country.It is still not

clear where Moammar Gadhafi is. The opposition has offered more than 1,600,000 dollars for his capture

(逮捕).The head of the opposition forces said his group supports a decision by local businessmen to provide

the money in an effort to speed up the capture. Earlier Wednesday, government forces fired onto the former

headquarters (总部) of Mr. Gadhafi, which is now controlled by opposition forces. Heavy fighting also

continued near Tripoli's airport and in a town of Zuara.

1. The underlined word "evacuated" probably means _______.

A. sent away to safer places

B. gathered around to higher positions

C. flooded off to lower reaches

D. left behind to dangerous situations

2. Who has been appointed as the new CEO of Apple?

A. Steve Jobs.

B. Michael Bloomberg.

C. Moammar Gadhafi.

D. Timothy D. Cook.

3. From the news above, we know that in Libya _______.

A. the local businessmen have offered money to catch hold of Gadhafi

B. the opposition forces suffered a thorough defeat near Tripoli's airport

C. the government forces are defending the headquarters of Mr. Gadhafi

D. the town of Zuara is the place where Moammar Gadhafi probably hides

谈判双方必须遵循谈判原则有那些？