帧模式MPLS可以利用()来避免环路。
A.IP TTL
B.MPLS TTL
C.Hop Count TLV
D.Path Vector TLV
参考答案:A, B, C, D
According to the Keynesian view, an increase in which of the following would most likely decrease current aggregate demand()
A. Budget deficit.
B. Transfer payments.
C. Personal income tax rates.
子宫内膜癌的高危因素有________、________、________、_______及________。