大体积墩台基础混凝土浇筑时,可分块进行浇筑,各分块平均面积不宜小于()平方米。
A.30
B.50
C.80
参考答案:B
单词拼写(共10题,每小题0.5分,满分5分)
小题1:New York is famous for its s______ and Empire State Building is one of its symbols.
小题2:The 2012 Olympic Games held in London was a great event and apart from the queen almost all the members of the r______ family attended the opening ceremony.
小题3:My father always s______ the importance of working hard, which I’m fed up with.
小题4:Glasses are f______ and must be handled with great care.
小题5:Many of Charles Dickens’s novels were o______ published in serial form in magazines.
小题6:How long will the ______(注册)trade-mark remain valid?
小题7:The government has promised stricter ______(管理) of the stock market.
小题8:The sale of ice cream is ______(部分)determined by the weather.
小题9:The ancient buildings are part of the national ______(遗产)and we should preserve them.
小题10: ______ (摩擦力)against the rock, combined with the weight of the climber, caused his rope to break.
上岗期间接听手机导致乘客投诉属于()
A、有效无责
B、有效有责Ⅲ类
C、有效有责Ⅱ类
D、有效有责Ⅰ类