Diamonds are nature's hardest things,rase and expensive .Man

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Diamonds are nature's hardest things,rase and expensive .Man-made diamonds provide a ___(cheap) and more readily available solution.Recent breakthroughts have brought methods to mass produce synthetic gems for both the jewelry industry and for technology,but ___history of man-made diamonds is over a hundred years old.
Man-made diamonds come in two types.They are synthetics,___have the same chemical composition and structures___diamonds,and simulants,which are of different materials,but appear diamond-lik and have some of diamond's features.
The first man-made diamnds in history were of the simulant type___(make) by Dr.henri Moissan in 1893.Later,many scientists made new___(discover)of man-madediamonds.Recent breakthroughts in synthetic diamond"growth"___(enable) some smaller companies to enter the market for man-made diamonds.
___is intereting to note that throught the history of man-maed diamonds,the purpose to produce them was for use in technology.For many,the intention was___(aid) science.The resulting gems are___(simple) a happy and money-making accident

Diamonds are nature's hardest things,rare and expensive .Man-made diamonds provide a __CHEAPER_(cheap) and more readily available solution.Recent breakthroughts have brought methods to mass produce synthetic gems for both the jewelry industry and for technology,but _THE__history of man-made diamonds is over a hundred years old.
Man-made diamonds come in two types.They are synthetics,_WHICH__have the same chemical composition and structures_FOR __diamonds,and simulants,which are of different materials,but appear diamond-lik and have some of diamond's features.
The first man-made diamnds in history were of the simulant type_MADE__(make) by Dr.henri Moissan in 1893.Later,many scientists made new__DISCOVERIES_(discover)of man-madediamonds.Recent breakthroughts in synthetic diamond"growth"__HAVE ENABLED_(enable) some smaller companies to enter the market for man-made diamonds.
_IT__is intereting to note that throughOUt the history of man-maed diamonds,the purpose to produce them was for use in technology.For many,the intention was__TO AID _(aid) science.The resulting gems are_SIMPLY__(simple) a happy and money-making accident

---Things are getting more expensive now.---It's ___that pri 求译：Sometimes,the hardest things to say are those that come s man and nature.是什么意思 Man and Nature Diamonds are a girl's best friend. 英语翻译“It’s expensive,but it's two things-a motorcycle and a p Many things are becoming more and more expensive that some p The things in the shop are expensive Diamonds are a Girl's Best Friend的中文意思英文小对话"man and nature" Man and nature 怎么写啊 man's nature at birth is good