利用钻时也可确定储集层,在钻井参数不变的情况下,储集层段一般为(),非储集层段一般为()。
A.高钻时;低钻时
B.低钻时;高钻时
C.高钻时;高钻时
D.低钻时;低钻时
参考答案:B
The result was good enough for Liu Xiang to win the ________, but far off his former world record and personal best of 12.88 seconds.
A power B advantage C title D item
在下列语句间连线,使之构成四副对联。
A.黑发不知勤学早 ①学海无涯苦作舟
B.无边落木萧萧下 ②白首方悔读书迟
C.四面荷花三面柳 ③不尽长江滚滚来
D.书山有路勤为径 ④一城山色半城湖