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【单选题】
Total variable costs:A.
are costs associated with short-run fixed capital.
B.
are so named because they vary from firm to firm within an industry.
C.
increase as production increases.
D.
decrease as production increases.
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【单选题】实现背景平铺效果，对应的CSS为
A.
div{background-image:url(img/bg.gif)；}
B.
div{background-image:url(img/bg.gif) repeat-x；}
C.
div{background-image:url(img/bg.gif) repeat-y；}
D.
div{background-image:url(img/bg.gif) no-repeat；}
【简答题】A．It is as lovely as her children. B．It is as sweet as flowers. C．It is as eager as a lover. D．It is as comfortable as home.
【单选题】能实现背景平铺效果,对应的CSS为
A.
div{backgroud-image:url(images/bg.gif);}
B.
div{backgroud-image:url(images/bg.gif) repeat-x;}
C.
div{backgroud-repeat:url(images/bg.gif) repeat-y;}
D.
div{backgroud-repeat:url(images/bg.gif) no-repeat;}
【单选题】实现背景平铺效果,对应的 CSS 为 ( )
A.
div{backgroud-image:url(images/bg.gif);}
B.
div{backgroud-image:url(images/bg.gif) repeat-x;}
C.
div{backgroud-image:url(images/bg.gif) repeat-y;}
D.
div{backgroud-image:url(images/bg.gif) no-repeat;}
【单选题】李××，男，36岁。因天寒受风诱发腹痛，腹冷痛，得热稍减，小便清利，大便自可，舌苔白，脉沉紧。如此，下列选项中治疗该患者应首先选用的方剂为（）
A.
黄芪建中汤
B.
附子理中丸
C.
良附丸合正气天香散
D.
乌头桂枝汤
E.
通脉四逆汤
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