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【单选题】
在截面任意点处切应力和正应力的夹角为()。
A.
45 °
B.
90 °
C.
0 °
D.
不确定
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皮皮学刷刷变学霸
举一反三
【单选题】Efforts were made by the government to stop the protest, but __.
A.
in person
B.
in effect
C.
in hand
D.
in vain
【单选题】打磨抛光塑料义齿时,错误的操作为()
A.
磨头应选择由粗到细
B.
尽量保持基托外形
C.
打磨过程应避免产热过高,导致义齿变形
D.
随时变换义齿的位置和部位,使表面受力均匀
E.
先打磨组织面,再打磨抛光面
【多选题】土地、资本等生产要素参与价值分配表明( )
A.
其实质是生产要素所有权在经济上的实现
B.
各种非劳动生产要素参与了社会财富的创造并且是价值创造的物质条件
C.
各种非劳动生产要素是价值的源泉
D.
各种非劳动生产要素和劳动力要素共同创造价值
【简答题】The producers of instant coffee found their product strongly resisted in the market places despite their distinct advantages. Furthermore, the advertising expenditure for instant coffee was far greate...
【单选题】When Applebee's Neighborhood Bar and Grill faced declining sales in 2008, efforts were made to:
A.
sell IHOP to raise capital.
B.
raise prices and increase quality.
C.
rejuvenate the brand.
D.
co-brand with IHOP.
【多选题】土地、资本等生产要素参与价值分配表明( )。
A.
其实质是生产要素所有权在经济上的实现
B.
各种非劳动生产要素参与社会财富的创造并且是价值创造的物质条件
C.
各种非劳动生产要素是价值的源泉
D.
各种非劳动生产要素和劳动力要素(工人的劳动)共同创造价值
【单选题】塑料义齿磨光时,错误的操作是()
A.
打磨从粗到细
B.
从磨光面到组织面
C.
不要破坏基托外形
D.
随时变换打磨部位
E.
间断打磨以免产热过多
【单选题】The first systematic efforts to teach people to read and to write were made from approximately ______.
A.
3000 to 4000 BC
B.
1000 to 2000 BC
C.
300 to 400 BC
D.
4000 to 5000 BC
【简答题】The producers of instant coffee found their product strongly resisted in the market places despite their product's obvious advantages. Furthermore, the advertising expenditure for instant coffee was f...
【简答题】如果做实验时,没有严格遵守操作要求,会造成一些误差,请用“>”或“<”号填空:在一次分组实验中,一些同学的操作如下: (1)小明用托盘天平称量药品时,右盘上的砝码为10g,游吗在0.8g的位置上,指针偏向左,所称药品的质量 ______10.8g. (2)小刚量取10mL水,仰视凹液面的最低处,这样称量水的体积 ______10mL. (3)丽丽称量食盐4g,她只在左盘放一张纸,右盘没有放纸,这样...
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