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【单选题】
物料IC烘烤的温度和时间一般为（）。A.
125±5℃，24±2H
B.
115±5℃，24±2H
C.
120±5℃，22±2H
D.
120±5℃，24±2H
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【多选题】下面哪几个选项中的语句能够完成用fplot语句来绘制函数【图片】在区间[-5,5]上的图形。
A.
x=-5:0.5:5; y= x.^3+2*x.^2+sin(x) fplot(x,y)
B.
f=inline('x^3+2*x^2+sin(x)') fplot(@f,[-5,5])
C.
先定义函数文件： function y=f(x) y=x^3+2*x^2+sin(x) 以文件名f.m保存在磁盘上 然后在另一文件内或命令窗口用绘图命令： fplot(@f,[-5,5])
D.
function y=f(x) y=x^3+2*x^2+sin(x) fplot(@f,[-5,5] (此三行语句写在同一个文件里面且按现在顺序，并以f.m命名)
E.
fplot('x^3+2*x^2+sin(x)',[-5,5])
F.
x=-5:0.5:5; y= x^3+2*x^2+sin(x) fplot(x,y)
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【单选题】超关节固定原则是
A.
上肢骨折夹板长度必须超过骨折上下两个关节
B.
下肢骨折夹板长度不必超过骨折上下两个关节
C.
下肢骨折夹板长度必须超过骨折上下两个关节
D.
下肢骨折夹板长度必须短于骨折上下两个关节
E.
下肢骨折夹板长度只需超过骨折上、下其中一个关节
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