A block that can be opened at the hook or shackle end to receive a bight of the line is a（）.

“One or two free admission days at slow times.”“Slow times”here means _____.

Personnel working aloft (above 2metres) should wear（）or other arresting device at all times.

It should be apparent that little or nothing is gained by opening a drain at the same time as or after admitting steamThe above sentence probably means （）.

四川大学皮革工程大楼大厅内，矗立着一座铜像，这是为了纪念曾经任教于四川大学的新中国皮革教育事业的一代宗师（）。

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 ______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）

I remembered the day when World War II finished I was eight or nine at the time , and we heard it ___ when we were at the table

I remembered the day when World War II finished I was eight or nine at the time , and we heard it ___ when we were at the table

Jitter is an unwanted variation of one or more characteristics of a periodic signal in electronics and telecommunications and（）refers to call issues that cause variations in timing or time of arrival.

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