单项选择题
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
When we land how can we get our stroller back?译文：等我们下机后...
判断题When we land how can we get our stroller back?译文：等我们下机后, 我们怎样取回婴儿车呢?
