【单选题】How many years will it be before the world runs out of oil? The question is far from an academic exercise. This year oil hit a near record high of $40 a barrel, and Royal Dutch/Shell Group downgraded ...
A.
How long the oil age will last is simply an academic question.
B.
The oil price this year set a new record.
C.
Shell Group reduced its reserves to 4.5 billion barrels this year.
D.
Economists disagree with one another on how much oil you can realistically mine.
【单选题】You didn’t take his advice, ______it, you ______such a mistake. A.If you had taken, would make B.Were you to take, shouldn’t have made C.Had you taken, wouldn’t have made D.Have you taken, won’t have ...