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【单选题】
●Developing the project schedule is often an iterative process. It determines the planned start and finish dates for project activities and milestones. Schedule development can require the review and revision of duration estimates and resource estimates to create an approved project schedule that can serve as a baseline to （75） progress. （75）A.
analyze
B.
track
C.
level
D.
extend
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【单选题】Will you __ the light? It's dark in the room. I can't see clearly. [ ]
A.
turn on
B.
turn of
C.
turn down
D.
turn up
【单选题】有两台PID调节器R1和R2,其参数整定为PB1Ti2,Tdl>Td2,这表示______。
A.
R1的比例作用比R2强,R1的积分和微分作用比R2弱
B.
R1的比例作用比K2弱,R1的积分和微分作用比R2强
C.
R1的比例、微分作用比R2强,积分作用比R2弱
D.
R1的比例、微分作用比R2弱,积分作用比R2强
【单选题】Finally, save your document before you ________ your computer.
A.
turn on
B.
turn up
C.
turn off
D.
turn down
【单选题】I'm reading now. Please tell him the TV a bit. [ ]
A.
turn up
B.
turn off
C.
to turn down
D.
turn down
【单选题】We invited her to dinner but she didn’t even bother to _______.
A.
turn in
B.
turn up
C.
turn on
D.
turn down
【单选题】__________ the radio, please. I want to listen to the weather report. [ ]
A.
Turn on
B.
Turn off
C.
Turn down
D.
Turn up
【简答题】某电压表的电原理图如图2-所示，所用表头参数Ig50μA，rg＝3kΩ，各挡量限如图2-所示，则分压电阻R1________，R2________。10V挡下的仪表内阻为________，50V挡下的仪表内阻为________。
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