著名的有效市场假说理论是由()提出的。
A.巴菲特
B.本杰明.格雷厄姆
C.尤金.法默
D.凯恩斯
______relatively costly, the engine is highly efficient and needs servicing infrequently.
A.Even
B.It is
C.Even though
D.There is
A.executive
B.extensive
C.effective
D.efficient
A.lovely
B.hard
C.efficient
D.respective
A.Aar=2.91%
B.Nar=3.32%
C.Sar=2.46%
D.Car=53.31%
______way is more efficient is still a question.
A.What
B.Which
C.That
D.Whether