砂岩油田油井堵水选井时要优先选择油层纵向渗透率级差大于()的油井。A、1 B、1.5

题型:单项选择题

问题:

砂岩油田油井堵水选井时要优先选择油层纵向渗透率级差大于()的油井。

A、1

B、1.5

C、2

D、5

考点:井下作业工高级井下作业工高级井下作业工题库
题型:单项选择题
Danny is a schoolboy. He  36  in a small town. His home is about ten miles  37  school and the roads are not flat(平坦的). So it’s  38  for him to get to school. He   39 at about five thirty every day and has breakfast. Then he  40  school at around six o’clock. First, he  41  his bicycle to the bus station. That takes about forty minutes. 42 the bus takes him to school. It usually takes about thirty minutes. Sometimes he has 43 time for breakfast at home, so he has something for breakfast on the bus.
“I’ve never taken trains. It must be a lot 44 fun than taking buses,” says Danny. He studies very 45 at school. He hopes he can go to school in a big city some day. He can take a train to school then.
小题1:
A.livesB.worksC.playsD.teaches
小题2:
A.atB.from C.inD.for
小题3:
A.easyB.goodC.interestingD.difficult
小题4:
A.gets upB.gets toC.goes to bedD.goes to work
小题5:
A.gets backB.leaves forC.leavesD.gets
小题6:
A.byB.sendsC.onD.rides
小题7:
A.ThenB.ButC.AgoD.After
小题8:
A.muchB.noC.notD.a
小题9:
A.littleB.less C.moreD.many
小题10:
A.badlyB.bad C.hardlyD.hard
题型:单项选择题

被甲状腺、唾液腺以及消化腺摄取,可用于甲状腺功能测定和甲状腺显像是

A.高锝[99mTc]酸盐离子

B.99mTc-HMPAO

C.99mTc-MIBI

D.99mTc-DMSA

E.99mTc-HL91

题型:单项选择题

已知某股票的总体收益率为12%,市场组合的总体收益率为16%,无风险报酬率为4%,则该股票的β系数为()。

A.0.67

B.0.8

C.0.33

D.0.2

题型:单项选择题

砂轮粒度的选择主要应考虑哪些因素?

题型:单项选择题

环境规划的基本特征。

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