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【多选题】
测评标度的形式包括( )。A.
量词式标度
B.
等级式标度
C.
定义式标度
D.
数量式标度
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反馈参考答案：
举一反三
【简答题】牛鲍计数板分为几个计数池?每个计数池又分为几大格?
【单选题】A motor drives a shaft at f=10 Hz and delivers P= 35 kW of power. The allowable shear stress in the shaft is 45 MPa. The minimum diameter of the shaft is approximately:【图片】
A.
35 mm
B.
40 mm
C.
47 mm
D.
61 mm
【多选题】If a point x* is a minimum of the function f(x) under the constrained condition g(x)=0, the first-order necessary for the condition extremum includes ( )
A.
f(x*)=0
B.
g(x*)=0
C.
▽f(x*)=0 [the gradient of the function f at the point x* is equal to zero vector]
D.
▽g(x*)=0
【单选题】He will write to me as soon as he()home.
A.
will have returned
B.
returns
C.
will return
【单选题】What is the minimum temperature required to burn carbon deposits off of a spark plug?B. 800°F
A.
700°F [371°C].
B.
[427°C].
C.
900°F [482°C].
D.
1000°F [538°C].
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