关于主动性异位心律，下列哪项不正确（） A.阵发性心动过速 B.房性期前收缩 C.心

1923年孙中山在一次演说中说：“三民主义中的第三项是民生主义，世界上行这项主义最新的国家，只有俄国。（其）他像英国、美国、日本，国家虽然富强，但是还没有行到民生主义。”他说社会上的财富不平均便免不了革命，“世界上起了这项革命，现在已经成功的，只有俄国” ，所以必须像俄国一样实行民生主义的革命。这表明孙中山

A．土地主张正在酝酿着新的变化

B．决定发动土地革命直接没收地主的土地

C．已经确立了“联俄”“联共”“扶助农工”三大政策

D．决定走俄国人的无产阶级革命道路

In the following passage, there are 25 blanks representing words that are missing from the context. You are to put back in each of the blanks the missing word. Write your answers on the ANSWER SHEET. The time for this section is 25 minutes.
Of all the employed workers in the United States, 12.5 million are part of a temporary workforce. The United States Bureau of Labor Statistics counts 9.2 percent of workers as those who have (1) they term "alternative employment arrangements." The government predicts that temporary staffing agencies (2) experience growth of 49 percent by 2010. If numbers increase at the rate (3) , these companies will add 1.9 million new jobs by 2010. That’s more than any (4) industry.
Temporary workers were the first ones to be affected by the recent economic recession, but they are (5) to be the first to regain positions as the economy picks up and companies work to rebuild. Employers use temporary workers as a resource because (6) offer
flexibility and come at a low cost. Many temporaries are categorized as "independent contractors" instead of employees, (7) allows the employer to avoid (8) certain taxes. Because they are not required to offer benefits to temporary workers, companies can save a great deal of money by hiring temps. Usually, temporary workers can qualify (9) benefits if they work for a staffing company for a certain length of time. Most temps, however, do not continue with one company long (10) to qualify for them because they regard the position as a step on the ladder to a (11) position later.
According to Richard Wahlquist, president of the American Staffing Association, 75 (12) of temporary workers hope for transition out of the temporary staffing category (13) a period of time. Wahlquist finds that temporary workers spend about 11 weeks on various assignments before their (14) out of the temporary workforce. Many use temporary positions to gain experience and skills (15) they move on to better jobs. Wahquist says that the temp workforce as a whole turns (16) 400 percent each year.
Tom Dilworth, research director at the Employment Policies Institute, explains (17) some workers like having temporary jobs (18) it affords them a great deal of elasticity with time and everything. Some temps only have a limited (19) of time to work and temp agencies can help coordinate jobs to fit their schedules. Other sometimes-employees use temporary jobs to get an (20) to a company from the inside, to get a foot in the door of a certain business or career. (21) others take temporary positions in hopes their employers will change them over to permanent positions eventually.
Nearly all the industries in the United States use temporary workers. (22) to Tim Costello, coordinator of the North American Alliance for Fair Employment, the growth of temporary labor threatens (23) job security of permanent workers who fear replacement,as well as the temps who are more accustomed to turnover. He predicts that there will continueto (24) a gradual shift from permanent employees to contingent staffing, and that such a (25) in workplace demographics will "lead to lower wages, poorer working conditions, and more instability."

临床应用华法林时，首选的监测指标是（）

A.血小板计数

B.凝血时间

C.国际标准化比值

D.活化部分凝血活酶时间

E.血浆纤维蛋白原

与螺旋CT时间分辨力相关的是（）。

A.采集速度

B.扫描层厚

C.扫描部位

D.重建时间

E.曝光条件

变压器竣工（预）验收阶段进行套管外观检查，油位计就地指示应清晰，便于观察，油位正常，油套管垂直安装油位在（）以上，倾斜15°安装应高于2/3至满油位。

A.0.5

B.1/3

C.2/3

D.0.75