A complex operation called spinal
fusion has emerged as the treatment of choice for many kinds of back pain. But a
number of researchers say there is little scientific evidence to show that for
most patients, spinal fusion works any better than a simpler operation, the
lamineetomy (椎板切除术). Some people would be better off with no surgery at all.
Even doctors who favor fusions say that more research is needed on their
benefits. In the absence of better data, critics point to a different reason for the fusion operation’s fast rise: money. Medicare can pay a surgeon as much as four times more for a spinal fusion as for a laminectomy. Hospitals also collect two to four times as much. "We all cave in to market and economic forces," said Dr. Edward C. Benzel. Though doctors, as a rule, should favor the least complicated treatment—wi A. Spinal fusion provides a better cure than other treatments. B. Spinal fusion is no good to patients suffering from back pains. C. There is limited evidence as to which treatment is better. D. Doctors have great confidence in the benefits of spinal fusion. [判断题]会员未在期货交易所规定的时间内追加保证金,或者自行平仓的,期货交易所应当将该会员的合约强行平仓,强行平仓的相关费用和发生的损失由期货交易所承担。( )【2009年9月真题]
[单项选择]对下列各句所使用的修辞手法判断正确的一组是 ( )①“猛犬不吠,吠犬不猛”,你知道吗②潮水来时,站在钱塘江堤上向东极目远眺,好像有亿万条鱼在宽阔的江面上跳跃追逐;又好像一群洁白的天鹅排成一线,展翅翩翩飞来。③我遐想,中国在几十年内,将有自己的“坚持探索真理”的哥白尼,“从上帝手中夺来电”的富兰克林,“把太阳拿在手中”的居里夫人。
A. ①顶真 ②排比 ③借喻 B. ①回环 ②明喻 ③借代 C. ①回环 ②排比 ③借代 D. ①顶真 ②明喻 ③借喻 [单选题]开辟()配套电网工程绿色通道,为新能源场站提供优质高效的服务,确保电网
电源同步投产,开展海上风电与海上电缆路由、登陆点资源统一规划,统筹网源建设,推进海上风电集中连片规模化开发。 A.生物质、太阳能发电 B.风电、太阳能发电 C.核电、风电 D.潮汐能、风电 [单项选择]变电站自动化系统技术规范不涉及变电站自动化系统的()。
A. 功能 B. 结构 C. 性能 D. 施工 [简答题]“施工特定行车办法”如何准备非正常接发列车进路?
[判断题]用人单位可以不参加工伤保险。
A.正确 B.错误 [单项选择]经过训练的金雕能在草原上长途追击野狼,某研究小组为研究金雕的飞行方向和判断狼群的活动范围,将无线电传导器放置在一只金雕身上进行追踪。野狼为了觅食,其活动范围通常很广,因此,金雕追击野狼的飞行范围通常也很大。然而,两周以来,无线电传导器不断传回的信号显示,金雕仅在放飞地4公里范围内飞行。以下哪项如果为真,最能解释金雕的行为?
A. 无线电传导器的安放削弱了金雕的飞行能力 B. 金雕放飞地2公里范围内有一水草丰美的牧场,羊群是野狼袭击的目标 C. 由于受训金雕的捕杀,放飞地广阔草原的野狼几乎绝迹 D. 金雕放飞地周边山峦叠嶂异常险峻,无法飞到更远的地方 [单选题]建筑工程安全生产管理必须坚持()的方针
A.安全第一,预防为主.综合治理 B.事中控制与事后控制相结合 C.经济效益第一 D.技术先进 [判断题]填充烟叶一般为烟碱含量较低,色泽、填充性较好的中下部烟叶。( )
A.正确 B.错误 [单选题]提供给空中交通管制单位使用的雷达,( )可不用显示在其视频地图上A. 航路中心线
B. 导航台和报告点
C. 移交点
D. 军用机场进离场航线
A.A B.B C.C D.D [判断题]现场使用警示带的时候,警示带必须拉紧,中间可以有接头。
[判断题]教育者的价值观不同,德育过程中预定内容的实现程度不同。()
A.正确 B.错误 [单项选择] · Read the following article about Japanese style of management and the questions. · For each question (15-20), mark one letter (A, B, C or D) on your Answer Sheet.
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