开篇9 l" c# S& o" y/ C' l% m" E
1) Many nations have been faced with the problem of ... ' i" y: }+ H6 N H7 } 2) Recently the problem has been brought into focus.' j& L+ N7 X5 `/ ~8 d
3) Recently the phenomenon has become a heated topic.+ Y) I4 Q5 E7 G; @" m
4) Recently the issue has aroused great concern among ...5 J4 P! {3 ]$ }. B8 B4 x. J
5) Nowadays there is a growing concern over ... 7 x8 W* N% y) j3 ^8 m2 T9 U 6) Never in our history has the idea that ... been so popular. 2 F7 C* D5 s! I9 H6 q. f+ M; c 7) Faced with ..., quite a few people argue that ...5 v: r/ L2 |2 ] b7 Z: u' o' E; U ?8 P
8) According to a recent survey, ... 3 P |* h8 H1 u* I 9) With the rapid development of ......
发表于 2012-8-14 10:35:42
