题目内容:
Whatdoesitmeanbysaying"Tropicalwaves,theembryosofmanytropicalcyclones"(Line1,Para.7)? A.Tropicalwavesaretheearlystageofmanytropicalcyclones.
B.Tropicalwavesarethefinalstageofmanytropicalcyclones.
C.Tropicalwavesarecorepartsofmanytropicalcyclones.
D.Tropicalwavesaretheonlypartofmanytropicalcyclones.
参考答案:
答案解析: