According to the passage "West Texas Intermediate" (Para. 4) refers to______.
A. an oil industry
B. an oil company
C. a government organization
D. a kind of crude oil
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From the passage we get to know that______.
America's bosses no longer have absolute power
B. the conviction of last month declares fraud charges
C. there is a crisis in American.corporate governance
D. the America's celebrity bosses are deceptive
What does the author mean by "a mixed blessing"(Para. 3)？
All kinds of good things.
B. Something mixed with confusion.
C. Something both good and bad.
D. Something mixed with optimistic and pessimistic results.
Judging from Paragraph 3, we may infer that oil prices will______.
A. enter into a "new era"
B. reach a new "price floor"
C. get to a new high
D. be hard to predict
In the author's opinion, the key to oil price is______.
A. energy crisis
B. dozens of varieties of crude trading
C. several challenges facing the' oil industry
D. the rise of resource nationalism
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