λmean=0.5λ0
λmean=1.0λ0
λmean=2.0λ0
λmean=2.5λ0
λmean=3.5λ0
第1题:
A.mean(x)=Me=Mo
B.mean(x)<Me<Mo
C.mean(x)>Mo>Me
D.mean(x)
第2题:
X线平均波长(λmean)与最短波长(λmin)的关系,正确的是
A、λmean=3.5λmin
B、λmean=3.2λmin
C、λmean=2.8λmin
D、λmean=2.5λmin
E、λmean=2.2λmin
第3题:
X线平均波长(λmean)与最短波长(λmean)的关系是
A.λmean=3λmin
B.λmean=5λmin
C.λmean=2λmin
D.λmean=5λmin
E.λmean=λmin
第4题:
The soundings on the chart are based on the depth of water available at ______.
A.mean low water
B.mean lower low water
C.mean high water
D.mean high water springs
第5题:
X线平均波长(λmax)与最短波长(λmax)的关系,正确的是
A.λmean=3.5λmin
B.λmean=3.2λmin
C.λmean=2.8λmin
D.λmean=2.5λmin
E.λmean=2.2λmin
第6题:
A.0.925
B.-0.913
C.0.957
D.0.913
第7题:
X线平均波长(λmean)与最短波长(λmin)的关系是
A.λmean=3λmin
B.λmean=2.5λmin
C.λmean=2λmin
D.λmean=1.5λmin
E.λmean=λmin
第8题:
x线平均波长(λmean)与最短波长(λmin)的 关系是
A.λmean =3λmin
B.λmean =2.5λmin
C.λmean =2λmin
D.λmean =l.5λmin
E.λmean=λmin
第9题:
A.mean pilot channel output power-mean data channel output power
B.mean pilot channel output power+mean data channel output power
C.mean pilot channel output power-0.5*mean data channel output power
D.mean pilot channel output power+0.5*mean data channel output power
第10题:
X线最强波长与最短波长的关系是
A.λmax=0.5λ0
B.λmax=1.5λ0
C.λmax=2.0λ0
D.λmax=2.5λ0
E.λmax=3.5λ0