心脏同步电复律的适应证为 A．持续性房颤 B．伴二度Ⅱ型房室传导阻滞的房扑 C．病态

女性，56岁，工人，腰腿痛20年，加重3个月。患者20年前有腰部疼痛，偶伴有右侧下肢牵拉痛。随着体重的增加，腰痛逐年加重。近3个月来，因腰痛而不能久行，咳嗽或坐起体位改变时有明显的腰痛，且伴有右小腿疼痛和麻木感。检查：体胖（85kg），腰部前屈20°，侧屈各30°，后伸30°，腰椎生理弧度呈过曲，腰棘旁、棘间局部压痛（++），腰与骶似呈台阶状，挺腹试验不能完成，直腿抬高试验（±），加强试验（+）。首先应做哪项辅助检查（）

A.腰椎正位片

B.腰椎侧位片

C.腰椎正侧位片

D.腰椎双斜位片

E.腰椎正侧双斜位片

小肠肿瘤中最常见的肿瘤是（）。

A.平滑肌瘤

B.平滑肌肉瘤

C.小肠腺瘤

D.纤维瘤

E.恶性淋巴瘤

“十二五”规划时期，关于完善规划实施和评估机制的内容，以下叙述正确的有( )。

A．明确规划实施责任

B．强化政策统筹协调

C．实行综合评价考核

D．深化金融体制改革

E．加强规划监测评估

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. Wahlquist 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 continue to______(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."

小钟月薪10万，每月薪资所得扣缴1.3万元，劳健保费4千元，交通费及餐费8千元，固定生活费用4万元，房贷本息支出2万元，则小钟的收支平衡点之月收入为（）

A.6万元

B.7万元

C.8万元

D.9万元