And, furthermore, when skeletal muscle is injured, that's what causes chemokines -- these signals saying, 此外，当骨骼肌受伤时，会导致趋化因子——这些信号说： "Cancer, you can come to me," the "go signs" for the tumors -- it c
May 28, 2007 THE PRESIDENT: Thank you, all. Secretary England, members of the Cabinet, General Pace, members of Congress, members of the United States military, veterans, families of the fallen, our f
REMARKS BY THE PRESIDENT AT THE NATIONAL ACADEMY OF SCIENCES ANNUAL MEETING National Academy of Sciences Washington, D.C. 9:12 A.M. EDT THE PRESIDENT: Well, thank you so much for the wonderful welcome
Most of the educational games that are out there today are really flashcards. 今天的多数教育游戏是过时的，它们只是卡片游戏。 They're glorified drill and practice. 它们都是很耗人的和需要人们的耐心来玩。 They don't have the depth, the r
