互换

Its features are endless and with everything from interchangeable lenses, a PC link, viewfinders, focusing screens and a myriad of speciality adaptors make it the world's most comprehensive photographic system.

它的特色不计其数，包括从可互换镜片，个人电脑连接，取景器，聚焦屏幕到众多专业的接头，使之成为世界上最全面的摄影系统。

Groundbreaking research by two french geophysicists promises to shed some light on the mystery.using 80 metres of deep sea sediment core, they have obtained measurements lots of magneticfield intensity that span 11 polarity reversals and four million years.the analysis reveals that intensity appears to fluctuate with a clear, welldefined rhythm.although the strength of the magnetic field varies irregularly during the short term, there seems to be an inevitable longterm decline preceding each polarity reversal.when the poles flip―a process that takes several hundred thousand years―the magnetic field rapidly regains its strength and the cycle is repeated.

答案为d。这一题目是根据上下文判断词意的题。flip的意思是&快速翻转&，它所在的句子的意思是&当两极互换――这一过程需要上万年的时间――磁场会很快重新恢复它的强度，新的一轮循环又开始了。&因此在四个选项中： a.decline的意思是&拒绝；变小、变弱&，b.intensify的意思是&变得更强烈、加剧&，c.fluctuate的意思是&涨落、波动&；d.reverse的意思是&使反转、倒退、颠倒&，例如：writing is reversed in a mirror。写出来的字在镜子里是颠倒的。d的意思与flip最接近。

Exhibit A: China sets up currency swaps with six nations so far this year.

场景一：中国今年以来已经与6个国家签署了货币互换协议。

YUAN FOR ALL?Exhibit A: China sets up currency swaps with six nations so far this year.

场景一：中国今年以来已经与6个国家签署了货币互换协议。

In fact, the largest drive-in theater in the world, the Fort Lauderdale Swap Shop, doubles as the world's largest daily flea market.

事实上，最大的驱动器，在影院中的世界，劳德代尔堡互换店，双打是世界上最大的每日跳蚤市场。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了