Many users report that their systems have completely crashed as a result of the .
A: upmarket
B: upgrade
C: uptight
D: updraft
A: upmarket
B: upgrade
C: uptight
D: updraft
举一反三
- Many lakes and rivers have been ________by industrial waste. A: polluting B: ruined C: crashed D: polluted
- 如果你当时意识到问题的严重性，并采取措施，结果就完全两样了。 A: Have you realized how serious the problem was then and taken some measures, the result is completely different. B: Have you realized how serious the problem was then and taken some measure, the result will have been completely different. C: Had you realized how serious the problem was then and taken some measures, the result would have been completely different.
- There are good reasons for XP users to ____.(upgrade)
- They have developed computerized systems which will greatly ______ all library users so that they will not need the help of others.
- Many businesses have been closed as a result of the economic ________.