Which of the following consonant clusters may not serve as the beginning of a word?

[单选题]Which of the following could serve as an appropriate title for the passage ?A．The Theory of Division of LaborB．Adam Smith as the Discoverer of Division of LaborC．Adam Smith, the English EconomistD．Division of Labor, an Efficient Way of Organizing Wor

[单选题]Which of the following clusters of words is an example of alliteration？( )A

[单选题]Which of the following clusters of words is an example of alliteration？( )A

[单选题]Which of the following clusters of words is an example of alliteration？( )A

[单选题]Which of the following can serve as a title of this text?[A] Hard Time for the Preschoolers[B] Prosperity of Private Schools[C] The Problem for Public Schools[D] Americans 's N0 1 Concern

[单选题]Which of the following may cause that an engine doesnt run on starting air?（）A . too low starting air pressureB . main start valve closedC . neither A nor BD . A and B

[单选题]Which of the following firing order may be used for a 6-cylinder engine? ( )A．1-2-3-4-5-6B．1-2-3-6-5-4C．1-5-3-6-2-4D．1-3-4-5-6-2

[单选题]Which of the following problems may occur if the opening pressure of a fuel injection nozzle is greater than specified by the engine manufacturer?（）A . The amount of fuel injected will be increasedB . The start of injection will be retardedC . The no

[单选题]Which of the following conditions may need to be reduced when operating a large, low speed, main propulsion, diesel engine at low loads?（）A . Injection pressuresB . Control air supply pressureC . Cooling water flow through after-coolersD . Lube oil t

[单选题]Which of the following may take place if the clearance of the main bearings are excessive?（）A . bearing knocksB . dropping of pressure of LOC . noisesD . all the above