[单项选择]( )可以管理系统性风险和非系统性风险，还可以根据投资者的风险承担能力和偏好，通过对冲比率的调节将风险降到预期水平。
A. 风险分散
B. 风险对冲
C. 风险转移
D. 风险规避

To produce the upheaval in the United States that changed and modernized the domain of higher education from the mid-1860s to the mid-1880s, three primary causes interacted. The emergence of a half dozen leaders in education provided the personal force that was needed.
Moreover, an outcry for a fresher, more practical, and more advanced kind of instruction arose among the alumni and friends of nearly all of the old colleges and grew into a movement that overrode all conservative opposition. The aggressive "Young Yale" movement appeared, demanding partial alumni control, a more liberal spirit, and a broader course of study. The graduates of Harvard College simultaneously rallied to relieve the college’s poverty and demand new enterprise. Education was pushing toward higher standards in the East by throwing off church leadership everywhere, and in the West by finding a wider range of studies and a new sense of public duty.
The old-style classical edu
A. Admission standards were lower.
B. Students were younger.
C. Classes ended earlier.
D. Courses were more practical.

The Californian coastline north and south of Silicon Valley is a trend-setting sort of place. Increasingly, the home interiors of the well-heeled there tend toward one of two (1) . Houses are (2) light flooded, sparse and vaguely Asian in (3) , with perhaps a Zen fountain in one corner, a Yoga area in another. Or they resemble electronic control rooms with all sorts of (4) , computers, routers, antennae, screens and remote controls. Occasionally, both elements are (5) . "She" may have the living room and’public areas, (6) "he" is banished with his toys up or down the stairs.
Currently, the gadget lovers have powerful allies. Many of the largest companies in the consumer-electronics, computer, telecoms and internet industries have made a strategic decision to (7) visions of a "digital home", "eHome", or "connected home". Doubting that (8) from corporate customers
A. beneath
B. against
C. throughout
D. as