试述阿米巴肝脓肿临床表现。

以下词组分别代表了新民主主义革命进程中一些重大历史事件。按其所反映历史事件的时间先后排列正确的是

A．遵义定决策五四起风雷辽沈开决战卢沟燃烽火

B．五四起风雷遵义定决策卢沟燃烽火辽沈开决战

C．五四起风雷卢沟燃烽火遵义定决策辽沈开决战

D．辽沈开决战卢沟燃烽火遵义定决策五四起风雷

（）是劳动保障协理员入户调查工作程序的第一步

A、做好调查记录，填写统计报表

B、做好调查工作计划，拟定调查提纲

C、做好调查汇报，整理调查数据

D、做好调查汇总，写出调查报告

光缆传输是以光导纤维为介质，传输（）的。

A、直流电

B、交流电

C、数据

D、信号

Scores of workers from MTV Networks walked off the job yesterday afternoon, filling the sidewalk outside the headquarters of its corporate parent, Viacom, to protest recent changes in benefits. The walkout highlighted the concerns of a category of workers who are sometimes called permalancers: permanent freelancers who work like full-time employees but do not receive the same benefits.

Waving signs that read "Shame on Viacom," the workers, most of them in their 20s, demanded that MTV Networks reverse a plan to reduce health and dental benefits for freelancers beginning On Jan. 1st. In a statement, MTV Networks noted that its benefits program for full-time employees had also undergone changes, and it emphasized that the plan for freelancers was still highly competitive within the industry. Many freelancers receive no corporate benefits. But some of the protesters asserted that corporations were competing to see which could provide the most mediocre health care coverage. Matthew Yonda, who works at Nickelodeon, held a sign that labeled the network "Sick-elodeon. " "I’ve worked here every day for three years-I’m not a freelancer," Mr. Yonda said. "They just call us freelancers in order to bar us from getting the same benefits as employees. "

The changes to the benefits package were announced last Tuesday. Freelancers were told that they would become eligible for benefits after 160 days of work, beginning in January. While that eased previous eligibility rules, which required freelancers to work for 52 weeks before becoming eligible, it would have required all freelancers not yet eligible for benefits to start the waiting period over again on Jan. 1st. The 401 (k) plan was also removed. On Thursday, acknowledging the complaints, MTV Networks reinstated the 401 (k) plan and said freelancers who had worked consistently since March would be eligible.

Fueled by a series of blog posts on the media Web site Gawker-the first post was headlined "The Viacom Permalance Slave System"-a loose cohort of freelancers created protest stickers and distributed walkout fliers last week. Caroline O’Hare, a unit manager who has worked for MTV for more than two years, said the new health care plan-with higher deductibles and a $ 2,000 cap on hospital expenses each year-had provoked outrage. "They think they can treat us like children that don’t have families, mortgages or dreams of retirement," she said.

Outside Viacom’s headquarters, several workers held posters with the words, "There’s too many of us to ignore. " It was unclear how many freelancers are on the company’s payroll; an MTV Networks’ spokeswoman said the figure was not known because it rises and falls throughout the year. The company has 5,500 full-time employees, excluding freelancers, around the world.

Two freelancers and one full-time employee, who asked not to be identified for fear of retribution, estimated that the percentage of freelancers in some departments exceeded 75 percent. Another labor action is expected to take place outside Viacom later this week. Members of the Writers Guild of America, who have been on strike for five weeks, are expected to picket there on Thursday.

Which of the following is NOT true on MTV Networks’ new benefits plan for freelancers（）

A. Its benefits plan for freelancers is highly competitive in the industry

B. Its freelancers cannot get the same benefits as the full-time employees do

C. The freelancers who are not eligible for benefits should start the waiting period over again on Jan. 1 st

D. The freelancers are against the new plan which substantially undermined their benefit