You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）
第1题：
A.Must you leave
B.Maybe you leave
D.You might left
D.Might you have left
第2题：
D
Find Which Direction Is South
Do you have a good sense of direction? If not, please take with you a compass. But if you forget to take a compass, you can still find your way.
It’s never a good idea to imagine that the family member who was entrusted（委托）with the job of map-reading actually knows where the family is. You can tell by the slightly confused load on their faces that nothing on the ground seems to match the map. Never mind. The sun is shining and it’s still morning. If you don’t know the exact time, you can still find out where south is, but you’ll need to be patient.
①Find a straight sick and put it in the ground in a place where you can mark its shadow.
②Try to position the stick as vertically（垂直）as you can. You can check this by making a simple plumb line （铅锤线）with a piece of string and weight. You haven’t got any string? OK, use a thread from your clothes with a button tied at the end to act as a weight.
③Mark the end of the shadow cast by the stick.
④Wait approximately half an hour and mark the end of the shadow again.
⑤Keep doing this until you have made several marks.
⑥The mark nearest the stick will represent the shortest shadow, which is cast at midday, when the sun is highest in the sky and pointing to the exact south.
⑦Pick a point in the distance along the line between the shortest shadow and the stick.
⑧That point is south of where you are.
⑨Now you can turn the map, like you did before, and find which way you should be travelling.
68. To find the direction, we ought to be patient probably because
A. it is not easy to find a proper stick B. it is not easy to position the stick
C. it takes hours to make the marks D. it takes about half an hour to make the marks
第3题：
A.find through
B.find
C.find over
D.find out
第4题：
Once you get into a bad habit, you’ll find it hard toget out of it. (英译汉)
第5题：
此题为判断题(对，错)。
第6题：
A.you find
B.find you
C.do you find
D.you do find
第7题：
If you say to an American that you are a stranger there, most probably he will______.
A. offer his help
B. stop smiling at you
C. help you find the way
D. reply that he is pleased to meet you
45．答案为A 根据第三段，从美国人对外国人提出请求的表现可知他们对外国人的友善，只有A选项全面概括了这点。
第8题：
A. somebody
B. nobody
C. anybody
D. everybody
第9题：
第10题：
A.whom
B.whose
C.who
D.which