（ ）Is red a strong color or a peaceful color?

Project（71）is an uncertain event or condition that，if it occurs，has a positive or a negative effect on at least one project objective，such as time，cost，scope，or quality．

● Project（71）is an uncertain event or condition that, if it occurs, has a positive or a negative effect on at least one project objective, such as time, cost, scope, or quality.（71）

 ______ twice a year, whether it is a car or a bus or a truck, is the rule that every driver must obey in this city.

It will be a relief over the death of a friend or a relative if the friend or relative dies from ______.

Although a teenager, Fred could resist _____ what to do and what not to do.

Although a teenager, Fred could resist ______ what to do and what not to do.

Although a teenager, Tom could resist ______ what to do and what not to do.

A mark or place at which a vessel comes under obligatory entry，transit，or escort procedure is know as（）.

“挑战杯”全国大学生竞赛包括哪两类赛事（）

哈工程学生近3年在“挑战杯”中国大学生创业计划竞赛及课外学术科技作品竞赛、亚太及全国大学生机器人电视大赛、美国国际大学生数学建模竞赛、全国大学生电子设计竞赛等各类国际国内赛事中获得国际、国家级奖（）余项。

FX2N 系列可编程序控制器输入常开点用( )指令。 A、LD B、LDI C、OR D、ORI