题目内容
(请给出正确答案)
[单选题]
MM440变频器按外形分为A~F、FX和GX8种规格,其容量范围为大约有多大()?
A.1.2kW~250kW(300HP)
B.0.12kW~250kW(300HP)
C.0.38kW~250kW(300HP)
D.0.10kW~250kW(300HP)
答案
查看答案
A.1.2kW~250kW(300HP)
B.0.12kW~250kW(300HP)
C.0.38kW~250kW(300HP)
D.0.10kW~250kW(300HP)
第10题
(1)设f(x,y)=x+(y-1)arcsin,求fx(x,1);
(2)设f(x,y)=,求fy.