巨淀粉酶,大分子淀粉酶

2007年VOA标准英语-New Treatment Offers Hope for Age-Related Macul

By Melinda Smith Washington 10 July 2007 A recent study in the Journal of the American Medical Association shows that older people who carry certain genes are more susceptible to a loss of their central vision. That loss of sight is an advanced form

发表于:2019-01-09 / 阅读(108) / 评论(0)

2007年VOA标准英语（七月）

Siri Comes to Mac Computers

Siri Comes to Mac Computers Earlier this month, Apple announced new technology at its yearly Worldwide Developers Conference (WWDC). In the last Personal Technology report, we talked about the changes to Apples iPhone and iPad operating system. Today

发表于:2019-01-12 / 阅读(131) / 评论(0)

2016年VOA慢速英语(七)月

乔布斯传第101期:划时代的Mac(3)

Thus they were destined to clash, especially after Jobs was ejected from the Lisa project in September 1980 and began casting around for someplace else to make his mark. 因此，他们两人之间注定会有冲突，尤其是乔布斯在1980年9月被

发表于:2019-01-22 / 阅读(60) / 评论(0)

乔布斯传

乔布斯传第100期:划时代的Mac(2)

Throughout 1979 and early 1980 the Macintosh project led a tenuous existence. 从1979年到1980年初，麦金塔项目一直处于奄奄一息的状态。 Every few months it would almost get killed off, but each time Raskin managed to cajole Markku

发表于:2019-01-22 / 阅读(57) / 评论(0)

乔布斯传

HEALTH REPORT - Progression of Age-Related Macular Degenerat

HEALTH REPORT - Progression of Age-Related Macular Degeneration By Nancy Steinbach Broadcast: Wednesday, January 28, 2004 This is Phoebe Zimmermann with the VOA Special English Health Report. American

发表于:2019-01-30 / 阅读(84) / 评论(0)

健康与经济

T-mac suffers fourth straight loss in CBA

BEIJING, Dec. 2 (Xinhua) -- Three-time NBA All-star Gilbert Arenas missed a head-to-head clash with seven-time All-star Tracy Mcgrady in the fourth round of the Chinese Basketball Association (CBA) league on Sunday. Arenas was benched for groin strai

发表于:2019-02-08 / 阅读(55) / 评论(0)

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