Select two statements that represent centrall ideas of the article a Mirror-making technology has advanced over time.
b Silver makes a high-quality mirror than aluminum
It takes a complex process to create a high-quality mirror.
d Some mirrors have their reflective coating on top of the glass.
e A new kind of mirror can reflect light from many angles.
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explanation:

if you’re a fan of chocolate, every occasion is right for this treat. feeling down? eat some chocolate. celebrating? eat some more. want to show your valentine how special you think your sweetheart is? offer up chocolate!   people have been enjoying chocolate as a food, drink and medicine for thousands of years. the ancient maya and aztecs called chocolate kakaw and used it as medicine. they also made chocolate offerings to their gods. chocolate comes from the cacao (kuh-kow) tree, and its scientific name reflects its history. theobroma cacao translates to “cacao, food of the gods.” these days, chocolate is not just for deities. the treat has become popular around the world.

the correct answer is:   [d]:   " diagram "   .

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    best wishes to you!

the answer is "the man who came here yesterday was selling magazines."