Which of the following components are used to convert alternating current produced in the generator windings to direct current?

A．Armature and equalizer

B．Commutator and brushes

C．Rotor and interpoles

D．Field and exciter

[单选题]Which of the following reports is least likely to be filed with the US SEC?

[单选题]For a US investor, which of the following statements concerning investing i

[单选题]Under US GAAP, which of the following is least likely a disclosure concerni

[单选题]Under US GAAP, interest paid is most likely included in which of the follow

[单选题]For a 90-day US I reasury bill selling at a discount, which of the followin

[单选题]Which of the following is NOT mentioned？A．Supermarket. B.Police station. C.School.

[单选题]In a computer，which of the following is the longest period? (66) .(66) A．Beat periodB．Machine periodC．Instruction periodD．CPU period

[单选题]Which of the following information is NoTmedtioned？A．Who wrote the stories. B.Which story is the longest.C．When we added the stories. D.Who added the stories.

[单选题]Which of the following is the result of the volcanic eruption?A． People stop traveling in EuropeB． Airlines suffer from the loss of planesC． It becomes dangerous for animals to eat outsideD． Farmers have lost many of their animals

[单选题]Which of the following statements is NOT true?A．) World population is increasing at a rate of 150 per minute.B．) Lower death rates also contribute to world population growth.C．) The population of Columbia has been doubling every year for 21 years.D．)