Which one is NOT the cause of the generation gap?

A． Young people like to choose their own lifestyles.

B． American society is changing very fast.

C． Parents place high hopes on their children.

D． Modem education makes them think differently.

[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 cause of the following can lead to the engine not to start on air?（）A . starting air pressure too highB . correct timing of starting air valvesC . three of the starting valves stuckD . the turning gear disengaged

[单选题]Which of the following would cause a diesel to have black smoke?（）A . leaky injectorB . water in the gasC . too heavy oilD . water in the oil

[单选题]Which one of the following is NOT the reason for an overall lack of teaching Darwin's theory?A．Teaching of creationism diminishes teaching of evolution.B．Teachers are not required to teach Darwin's theory.C．teachers often leave out the teaching of

[单选题]Which one of the following describes the similarity between the stack and the queue?(75)A．logical characteristicsB．physical characteristicsC．operation methodD．element type

[单选题]If a market is currently in equilibrium, which of the following is least li

[单选题]Which one of these statements about connecting to the Internet is true? (68) .(68) A．The Internet can only be used to link computers with same operating systemB．The Internet can be used to connect computers with different ISPC．You must have a telepho

[单选题]_______control system is one in which the control action is independent of the output.A．Feed backB．Negative feed backC．Close loopD．Open loop

[单选题]On the topic of VLSM, which one of the following statements best describes the concept of the route aggregation?A．Deleting unusable addresses through the creation of many subnets.B．Combining routes to multiple networks into one supernet.C．Reclaiming

[单选题]Which one is the microwave plan tool？（）A . AtollB . ConnectC . AssetD . Plant