采油井应用机械堵水工艺，能够（），提高油井产量。
A、降低油井含水
B、降低生产层含水
C、减少层间干扰
D、减少层内干扰
参考答案：A, C
—Hi, Jack. Did you go to Jim's birthday party?
—No, I felt so sad. I _____.[ ]
A. didn't invite
B. wasn't invited
C. am not invited
D. hadn't invited
下列哪种意识障碍状态易出现错觉和幻觉（）
A.嗜睡
B.谵妄
C.昏睡
D.浅昏迷
E.深昏迷
