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[单选题]
()a sports car in front of her house last night.
A.It was
B.Here was
C.There was
查看答案
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A.It was
B.Here was
C.There was
A.Fr=3000~40000
B.Fr=3500~50000
C.Fr=3500~45000
D.Fr=3000~50000
A.Fr=600kN
B.FI=247.9kN
C.Fr=247.9kN,a=6.2°(第三象限)
D.Fr=247.9kN,a=6.2°(第二象限)
A.depends
B.dependent
C.dependable
D.independent.
A.will have
B.will going to be
C.is going to be
D.will go to be
A.2fT – fR 或 (fT + fR ) / 2
B. fT –fR或 fT + fR
C. 2(fT – fR)或 2(fT + fR )
D. 2fT 或 2fR
A.dropping
B.falling
C.descending
D.decreasing
A.DIA产品、FR产品、ATM产品
B.DDN产品、FR产品、ATM产品
C.DIA产品、宽频系列产品、ADSL产品
D.宽频系列产品、ADSL产品、FR产品
A.FR'=0, MB=0
B.FR'=0, MB≠0
C.FR'≠0, MB=0
D.FR'≠0, MB≠0