单词:asbestos mask
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The children rang the bell but no one answered. They knocked on the door. Still nothing. Grandma Belle cant go out with a broken hip, said Violet. Benny peered through the window. Her wheelchairs gone! I left it right there in the corner. Maybe she w
This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Asbestos increases the risk for certain cancers. The fibers are thought to do so by skewering cells, setting off chemical reactions that lead to inflammation,
Five minutes later, the children stood in front of 332 Locust. Faded blue paint chipped and peeled off the old house. Thick weeds choked the flowerbeds and grew up through cracks in the walk. Hot summers and freezing winters had turned the white pick
California has an official animal, the grizzly bear, and a state bird, the California quail. It has an official grass, purple needle grass, and a state reptile, the desert tortoise. It even has an official song, a century-old tune called I Love You,
Let's have a look at what's leading on our News today: And more than 100,000 people are expected to pack Flemington Racecourse for today's running of the Melbourne Cup. This year's cup is likely to be dominated by international runners with 11 overse
Each day, millions of tonnes of rubble go by truck to Bottle Lake Forest in Christchurch. Demolition companies are working seven days a week to demolish buildings in the CBD after the earthquakes caused so much damage. Cranes, bulldozers, excavators,