地层压力是指（）所具有的压力，井底压力是指（）的总和。
参考答案：地层流体；作用在井底各种压力
Directions:
Write an essay of 160—200 words based on the following photo. In your essay, you should
1) describe the photo briefly, speculating about what she is thinking of,
2) state different views on part time jobs, and
3) give your own comment.
You should write it neatly on ANSWER SHEET 2.
AD288机器复印时，从送稿器走纸，原稿顺利出来后，面板显示“正在读取原稿”，约10秒后，提示送稿器卡纸。则可能是什么原因造成的（）
A.ADF主控板损坏
B.驱动板损坏
C.MFBS板损坏
D.BCRS板损坏
