【简答题】挤压类手法包括______和______手法。
【判断题】生物碱碱性是由氮原子数目来决定的,氮原子数目越多,碱性越强。( )
【简答题】Give a term for each of the following definitions. a) Sub-standard words often used on informal occasions ( ) b) Specialized vocabulary common in different professions ( ) c) Words used by sub-cultura...
【单选题】WTO中最惠国待遇、国民待遇等条款体现的是()