第66題： 有8口海上油井，相互間距離如下表所示（單位：海里）。其中1號井離海岸最短長度，為5海里，先要從海岸經(jīng)1號井鋪設油管將各井連接起來，則鋪設輸油管道的最短長度（）海里。

A、9.1
B、9.2
C、10.1
D、10.2
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第67題： 項目經(jīng)理制定了項目資產(chǎn)負債表（單位：元），如下表所示。該項目的靜態(tài)投資回收期為（）年，動態(tài)投資回收期為（）年（保留一位小數(shù)位）。

（69）A、2
B、2.4
C、2.8
D、3.
（70）A、3
B、3.4
C、3.5
D、3.6
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第68題： The （）creates opportunities for more direct Integration of the physical world into computer-based systems， resulting in efficiently improvements ,economic benefits , and reduced human exertions.
A、internet of things
B、cloud computing
C、big data
D、mobile internet
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第70題： （）are those costs that cannot be directly traced to a specific project and therefore will be accumulated and allocated equitably over multiple projects by some approved and documented accounting procedure.
A、Direct costs
B、Operation costs
C、Indirect costs
D、Implement costs
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第71題： Earned value management(EVM) integrates the scope baseline with the （）baseline,along with schedule baseline,to form the performance baseline,which helps the project management team assess and measure project performance and progress.
A、qulity
B、risk
C、change
D、cost
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第72題： （）risks cannot be management proactively and therefore may be assigned a management reserve.
A、Knowm
B、Natural
C、Unknown
D、Human
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