Which of the following reasons represents why the designed compression ratio of a gasoline engine is lower than that of a diesel engine?

A．compression must be low for effective spark ignition

B．compression must be low for required horsepower and torque generation

C．compression must be low to prevent pre-ignition

D．compression must be low to have effective pre-ignition

[单选题]Which of the following statements does not accurately represent the objecti

[单选题]Which of the following would most likely represent an inappropriate use of

44.(多选题) Which of the following sentences represent the past tense?A. If he stud

[单选题]According to its geographical location，which one can be used to represent A

[单选题]According to its geographical location，which one can be used to represent A

[单选题]According to its geographical location，which one can be used to represent A

[单选题]According to its geographical location，which one can be used to represent A

[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.