下图中的哪一个代表了买入看涨期权的盈亏()
A.
B.
C.
D.
参考答案:A
In the age of Google, our minds are adapting so that we are experts at knowing where to find
information we don't recall what it is.[ ]
A. as long as
B. as far as
C. even though
D. in order that
关于物体的内能,下列说法中正确的是( )
A.热量总是由内能大的物体传递给内能小的物体
B.晒太阳使身体变暖,是通过热传递改变内能的
C.一块0℃的冰全部熔化成0℃的水,内能不变
D.物体吸收热量,内能变大,温度升高