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【单选题】
You should wash your hands __________ you have meals.A.
when
B.
before
C.
as soon as
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举一反三
【单选题】The Greek thinks in order to _______. It is speculation. The Hindu thinks in order to _______. It is meditation. The Chinese thinks in order to _______. It is contemplation.
A.
do; die; live
B.
spectacle; meddle; contempt
C.
understand; think; self-cultivate
D.
think; self-cultivate; understand
【单选题】下列关于三相负载有功功率的计算各式,既可用于对称负载又可用于非对称负载的是______。(下标中P:相,L:线,A:A相,B:B相,C:C相)
A.
P=PA+PB+PC
B.
P=3UpIpcosφ
C.
P=31/2ULILcosφ
D.
P=UpIpcosφ
【单选题】What can we infer from the dialog?
A.
Mason is interested in traditions and diversity.
B.
Irene thinks that Mason does not appreciate other traditions.
C.
Mason does not agree with Irene when she says she finds similarities between Greek and Chinese traditions.
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