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童话故事:白雪公主01
cheeks Snow WhiteOnce upon a time, in a land far away, a king and queen lived in a beautiful castle. They had everything they wanted, except a child of their own. One night, the queen was sittin...
科学60秒:和藻类共生的蝾螈
A rolling stone gathers no____1____. But a salamander embryo can attract algae. Inside its tissues and cells. This intimate________—the first ever seen between algae and a vertebrate—is reveale...
美文欣赏:永远的朋友1/2
美文欣赏:A Forever Friend"A friend walks in when the rest of the world walks out." A Forever Friend Sometimes in life, You find a special friend; Someone who changes your life jus...
美国会下周开始移民改革讨论(1)
美国国会下周开始关于移民法改革的讨论Immigration reform is a key priority for the Senate's top Democrat, immigration reform is also a priority for President Bush, who has proposed establishing a g...