【单选题】耐火极限对任一建筑构件按时间一温度标准曲线进行耐火试验,从受到火的作用时起,到( )的这段时间,用小时表示 。
D.
失去支持能力或完整性被破坏或失去隔火作用时为 止
【简答题】耐火极限是指对任一建筑构件按时间-温度标准曲线进行耐火试验,从受到火的作用时间起,到失去 或 或 时止的这时间。
【简答题】PART 2 Describe a recent news story that you have heard or read about. You should say: what the news was and where you heard or read it; if it was significant for many people; how it has changed, or w...
【单选题】How to Read Books A number of recent books have reworked subjects, forms and writing techniques. Today's children read stories about divorce, death, drugs, air pollution, political extremism and viole...
【单选题】What are the findings of recent survey?
A.
The reasons why-people don't read newspapers are more complicated than assumed.
B.
There are more uneducated people among the wealthy than originally expected.
C.
The number of newspaper readers is steadily increasing.
D.
There are more nonreaders among young people nowadays.
【单选题】Questions 11 to 15 are based onthe following passage: According to a recent surv, ey, employees in many companies today work longer hours than employees did in 1979. They also take shorter vacations t...
A.
Many people work long hours but do not always do a lot of work.
B.
Most people can get more work done by working longer hours.
C.
Most Americans work 80 hours a week, and some work even longer.
D.
People can make more money by working longer hours.