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【单选题】
The speaker wants us human beings to think about why .A.
some people sometimes appear to be so creative
B.
we sometimes seem to be so dull and stupid
C.
some of us appear to be so imaginative sometimes
D.
creativity is the essence of life and nature
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【多选题】下面对老年人用药剂量的调整描述正确的是
A.
60岁以上老年人用药剂量应酌减，一般给予成人剂量的3/4
B.
初始剂量应为成人剂量的1/3～1/4
C.
使用时可根据患者体质、肝肾功能、药物性质等多方面因素酌情决定
D.
严密观察用药后的反应，一有异常迹象，应立即停药
E.
对老年人应详细询问用药史，注意个体差异
【单选题】已知直线过点A(1,0),且倾斜角是45度,直线的参数方程是( )?
A.
x=1+ t y= t
B.
x= t y=1+ t
C.
x= t y= t
D.
x=1+ t y=1+ t
【单选题】Which of the following is NOT an assumption in the H-O model?
A.
Perfect competition in both commodities and factor markets
B.
Complete specialization in production
C.
Constant returns to scale
D.
No transportation costs.
【简答题】已知直线过点A(1,0),且倾斜角是 ,试写出直线的参数方程。
【简答题】如图所示电路中,电流表A1的读数为9A,电流表A2的读数为3A,R1=4Ω,R2=6Ω,试求电阻R3的阻值。
【单选题】Which theory is not based on H-O model?
A.
Rybczynski theorem
B.
Stolper-Samuelson theorem
C.
Economies of scale theory
D.
Heckshcer-Ohlin-Samuelson theorem
【简答题】已知直线过点A(1,0),且倾斜角是 ,试写出直线的参数方程。
【简答题】According to California school superintendent Jack O. Connell， the measure of extend-ing class time should be taken to bridge the achievement gap. 查看材料
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