判断题
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What qualities made the Silicon Valley impossible to cl...
单项选择题What qualities made the Silicon Valley impossible to clone?（）
A.Strong universities and a risk-taking culture B.Rich natural resource C.Residental circumstance and pleasant climate D.Reveloped economy
（）has the 19th-largest economy in the world.A.ShanghaiB...
单项选择题（）has the 19th-largest economy in the world.
A.Shanghai B.Switzerland C.Saudi Arabia D.The Bay Area
What’s the meaning of “wax and wane” ?（）A.月圆B.兴衰成败C.月缺D...
单项选择题What’s the meaning of “wax and wane” ?（）
A.月圆 B.兴衰成败 C.月缺 D.退潮
