单词:synthetic quartzcrystal
单词:synthetic quartzcrystal 相关文章
Illicitly used Synthetic drugs are chemically produced psychoactive substances that mimic the effects of illegal narcotics, which have been altered just enough to avoid classification as illegal. And this is one reason why these chemicals are dangero
Keeping Time With Quartz Most people know that wrist watches commonly contain quartz. In fact, if you wear a watch, chances are its a quartz watch, since most watches is made today use quartz. But, you may not know what quartz has to do with keeping
1.What's the price of that _______ of potatoes? A.beg B.pig C.pint D.sack 2.You don't have to pay any _______ on personal belongings. A.price B.duty C.expense D.elevator 3.Mary is too weak to _______ the piano across the room. A.apply B.appeal C.attr
AUDIE CORNISH, HOST: Scientists have taken a big step towards making synthetic life. In other words, they figured out how to create a living thing with DNA that was written in a lab. NPR health correspondent Rob Stein has the details. ROB STEIN, BYLI
SYDNEY, Aug. 5 (Xinhua) -- The Western Australian Government announced on Friday that 14 new substances linked to the manufacture of the synthetic drug Kronic would be banned from Friday midnight. The State Mental Health Minister Helen Morton told th