题目
199 You are giving your team instructions on how to perform. a new test which is different from the way that the team had performed it previously. The best way to verify that the learn understands what you want is to:
A. obtain feedback
B. analyze the team's perceptions barriers
C. uses gestures in presenting the instructions
D. analyze the team's decoding skills
E. analyze the team's encoding skills
第5题
YO/YO接线的电压互感器,一次A相熔断器熔断,其二次侧Vbo、Vco()的电压正常,()和Vac电压很低,但不等于零。
第6题
A.as
B.if
C.while
D.that
第7题
设f(x,y)与φ(x,y)均为可微函数,且φˊ(x,y)≠0,已知(xo,yo)是f(x,y)在约束条件φ(x,y)=0下的一个极值点,下列选项正确的是().
A.若fˊx(x,yo)=0,则fˊy(xo,yo)=0
B.若fˊx(xo,yo)=0,则fˊy(xo,yo)≠0
C.若fˊx(xo,yo)≠0,则fˊy(xo,yo)=0
D.若fˊx(xo,yo)≠0,则fˊy(xo,yo)≠0
第8题
设f(x,y)与ψ(x,y)均为可微函数,且ψˊy(x,y)≠0,已知(xo,yo)是f(x,y)在约束条件ψ(x,y)=0下的一个极值点,下列选项正确的是()
A.若fˊx(xo,yo)=0则fˊy(xo,yo)=0
B.若fˊx(xo,yo)=0则fˊy(xo,yo)=0
C.若fˊx(xo,yo)≠0则fˊy(xo,yo)≠0
D.若fˊx(xo,yo)≠0则fˊy(xo,yo)≠0
为了保护您的账号安全,请在“赏学吧”公众号进行验证,点击“官网服务”-“账号验证”后输入验证码“”完成验证,验证成功后方可继续查看答案!