The researchers found that all bar one of the classrooms they studied had equipment arranged in such a way as to exacerbate this problem, with projectors on the ceiling and screens mounted vertically.
研究者们发现除了一间教室外,所有教室都把投影仪挂于天花板上,屏幕垂直安装,这样的设置使问题更加严重。
New functions include regular expression syntax for pattern matching, new date functions such as current date, and new numeric functions such as floor, ceiling and round.
新的功能包括用于模式匹配的正则表达式语法,新的日期函数比如当前日期,还有新的算术函数比如floor, ceiling和round。
Those Iowans may well be reacting to domestic news, such as the debt-ceiling crisis in late July or Standard & Poor's downgrade of America's credit rating.
那些爱荷华州的投资者们也许对国内的新闻反映迅速,譬如七月底的债务上限危机,或是标准普尔公司下调对美国主权信用评级。
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