Which of the following materials is a good insulator?( )

A．Steel

B．Aluminum

C．Glass

D．Copper

[单选题]Which of the following limit buy orders would be the most likely to go unex

[单选题]___ they decide which college to go to, students should research the admission procedures.A． AsB． WhileC． UntilD． Once

[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 is NOT mentioned？A．Supermarket. B.Police station. C.School.

[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]To which of the following is the author most likely to agree?［A］ the rich and the poor are equal in the face of death. ［B］ more scientists are needed for the medical advancement.［C］ there is a double standard in medical ethics. ［D］ the dead deserve t

[单选题]Which of the following statements is NOT true?A． Latchkey children feel free at home.B． Working parents often leave their children alone at home.C． Many parents do not admit that they leave their children alone.D． Latchkey children have to learn to t

[单选题]Which of the following statement is NOT true?A． When you run out of money, you can ask your partner to call back.B． Telephone books in the US have different colors.C． The state of Oregon has several area codes.D． An area code is necessary in making a

[单选题]Which of the following is TRUE?A． The writer's family is the poorest one on that street.B． Watching the rich girl eating cookies, those hungry children cried.C． The writer wants to move out of that district.D． The writer hopes that her children will