【简答题】To whom is the letter written? The letter is intended for __________ in P. R. of China.
【单选题】用气相色谱法分析氧气和氮气,可选用的固定相为 ( )
【判断题】( )焊在立柱上的门铰链与螺栓固定的门铰链的维修方同。
【简答题】To whom will Jenny report the matter?A. Mr.
Johnson. B. Mr.
Smith. C. Frank.
【判断题】Context is supposed to play a more accurate and central role in communication of our daily life.
【单选题】Text AChoose the right meaning for each underlined part according to the context.The purported function of the massage cha订 is that it can dispel your fatigue
【单选题】He is an arbitrary leader and not very tolerant______criticism or contradiction.