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(本小题满分12分) 一段长为40m的篱笆围成一个一边靠墙的矩形菜园,墙长20m,问这个矩形的长、宽各为多少时,菜园的面积最大?最大面积是多少?
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【简答题】Expo 2010 Shanghai China Duration: May 1 to Oct 31, 2010 Welcome to the World Expo 2010 Shanghai China. In order to ensure a safe and orderly visit, the organizer of Expo 2010 has formulated (制订) thes...
【判断题】根据SiO2含量不同,岩浆岩可划分为超基性岩、基性岩和酸性岩三大类
A.
正确
B.
错误
【判断题】根据SiO2含量不同,岩浆岩可划分为超基性岩、基性岩和酸性岩三大类
A.
正确
B.
错误
【简答题】数据经过处理,仍然是数据,只有经过()才有意义,才成为()。
【单选题】固化到计算机主板上,为计算机提供最底层、最直接的硬件设置和控制的程序组是( )
A.
 CMOS
B.
BIOS
C.
LPT
D.
VGA
【单选题】Shanghai Expo has been building an Expo Village for the participants, but other choices will also
A.
27.Shanghai Expo has been building an Expo Village for the participants, but other choices will also be ____ if the Expo Village does not satisfy their needs. A.accessible
B.
available
C.
affordable
D.
Approvable
【单选题】Visitors ________ take an animal or any other item prohibited by the Expo Bureau to the Expo Park.
A.
needn’t
B.
may not
C.
mustn’t
D.
will not
【单选题】Shanghai Expo has been building an Expo Village for the participants, but other choices will also be ____ if the Expo Village does not satisfy their needs.
A.
accessible
B.
available
C.
affordable
D.
approvable
【简答题】(三)某高层建筑地下车库,采用逆作法施工,二级防水等级。钢筋混凝土外墙和底板的防水均采用SBS改性沥青卷材防水层,卷材采用冷粘法施工工艺。 请根据上述材料,回答下列问题。 防水混凝土适用于地下工程的环境温度最高限值是60℃。()(判断题) (三)某高层建筑地下车库,采用逆作法施工,二级防水等级。钢筋混凝土外墙和底板的防水均采用SBS改性沥青卷材防水层,卷材采用冷粘法施工工艺。 请根据上述材料,回答...
【单选题】The World Expo (世博会) in 2010 Shanghai was held. The theme of the Shanghai Expo is “______”.
A.
Faster, Higher, Stronger    
B.
Better City, Better life    
C.
One World, One Dream
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