第66题： 有8口海上油井，相互间距离如下表所示（单位：海里）。其中1号井离海岸最短长度，为5海里，先要从海岸经1号井铺设油管将各井连接起来，则铺设输油管道的最短长度（）海里。

A、9.1
B、9.2
C、10.1
D、10.2
答案解析与讨论：www.cnitpm.com/st/4099626302.html

第67题： 项目经理制定了项目资产负债表（单位：元），如下表所示。该项目的静态投资回收期为（）年，动态投资回收期为（）年（保留一位小数位）。

（69）A、2
B、2.4
C、2.8
D、3.
（70）A、3
B、3.4
C、3.5
D、3.6
答案解析与讨论：www.cnitpm.com/st/409978566.html

第68题： 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
答案解析与讨论：www.cnitpm.com/st/4099813317.html

第70题： （）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
答案解析与讨论：www.cnitpm.com/st/4100016928.html

第71题： 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
答案解析与讨论：www.cnitpm.com/st/4100122755.html

第72题： （）risks cannot be management proactively and therefore may be assigned a management reserve.
A、Knowm
B、Natural
C、Unknown
D、Human
答案解析与讨论：www.cnitpm.com/st/4100215332.html