【判断题】对映异构体之间化学性质、物理性质都相同。
【单选题】伊利面对强有力的竞争对手,和路雪、雀巢、新大陆等,充分利用自己在能源上的优势,采取了优质低价的策略。可见伊利采用的是 的市场定位策略。( )
【单选题】In which sea areas(s), INMARSAT service are available?
B.
Sea Area A1, A2 and A3
C.
Sea Area A3 is included
【单选题】What does resistance vessel mainly refer to?
B.
A rteriole and arterioles
【单选题】The Hispanics mainly refer to the ethnic people immigrating to the U. S. from ______.
【判断题】Ribozymes mainly refer to enzymes in the nucleus.
【单选题】The Racial Problems mainly refer to discrimination against people except ( ).
【简答题】The sea waybill is one of the shipping documents used for sea transportation and serves as( ).