世界降水分布规律是:赤道地区降水____,两极地区降水____;回归线附近的大陆西岸降水____,而东岸降水____;中纬内陆地区降水____,沿海降水____。
— Could we practice playing the guitar in the hall, Sir ? —No , ___________ you have the principal's (校长) note.
“水旱从水,不知饥馑,…天下谓之天府”。此水利工程是指( )