单项选择题

（）is not the advantage of GERT （Graphical evaluation and review techniques）as compared with PERT （project evaluation and review techniques）.

A. Allowing looping
B. Allowing for dummy tasks
C. Allowing branching
D. Allowing multiple project end results

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单项选择题

The length of the IPv6 address is （）.

A. 64 bytes
B. 128 bytes
C. 64 bits
D. 128 bits

单项选择题

A （）is a software that provides a method of communication between two electronic devices over the World Wide Web.

A. router
B. cober
C. J2EE
D. web service

单项选择题

A、以口头方式提出某项变更，在评估前针对该变更提交了书面报告XXX
B、项目组成员变更以邮件发出，在评审前填写了变更申请
C、为了规范，监理不对变更进行分级，所有变更流程都不能简化
D、按照影响范围、紧急程度吧变更分为3个优先级别

（ ）is not the advantage of GERT （Graphical evaluation and review techniques）as compared with PERT （project evaluation and review techniques）.