Mercantilism is an economic philosophy advocating that countries should simultaneously
A.encourage, encourage
B.discourage, discourage
C.discourage, encourage
D.encourage, discourage
A.encourage, encourage
B.discourage, discourage
C.discourage, encourage
D.encourage, discourage
The idea of Mercantilism cant work in todays world because
A.countries" imports of finished goods exceed exports.
B.countries" wealth comes from global market now.
C.countries need to pay more to buy raw materials.
D.countries don"t have their own colonies any more.
设有文法G(E)=({E),{i},{E→E+E|E*E|(E)|i),E),该文法是________。 ①算符文法 ②上下文无关文法 ③3型文法 ④二义性文法可选项有:
A.①②
B.①②④
C.②④
D.①②③④
证明 e(φ)×e1(φ)=k; (2)证明 e(φ+α)=e(φ)cos α+e1(φ)sin α.
A.E(rA)>E(rB),且σA=σB
B.E(rA)>E(rB),且σA<σB
C.E(rA)=E(rB),且σA<σB
D.E(rA)<E(rB),且σA>σB