• (A) 条件(1)充分，但条件(2)不充分．
• (B) 条件(2)充分，但条件(1)不充分．
• (C) 条件(1)和(2)单独都不充分，但条件(1)和条件(2)联合起来充分．
• (D) 条件(1)充分，条件(2)也充分．
• (E) 条件(1)和条件(2)单独都不充分，条件(1)和条件(2)联合起来也不充分．

Every student graduating from Burgerville College is either a 4-year student or a transfer student. If Burgerville is graduating an equal number of 4-year students and transfer students, what fraction of the students who graduate with honors are transfer students
(1) Of the 700 transfer students graduating, 300 are graduating with honors.
(2) Fifty percent more transfer students than 4-year students are graduating with honors.

变压器原、副边都有一定电阻，当电流流过该电阻时，就要产生损耗，这种损耗叫（）。