B．ecause of the complexity of our modern machine, we need our workers ______.

A． to train special

B． specified in training

C． to have specified training

D． training specially

[单选题]Our modern civilization must not be thought of as ________ in a short period of time.[A] being created[B] to have been created[C] having been created[D] to be created

[单选题]To reduce their design complexity, most networks are organized as a stack of(72), each one built upon the one below it.A．blocksB．modulesC．piecesD．layers

[单选题]［A］ dimension ［B］ complexity ［C］ exercise ［D］ function

[单选题]Modern life is impossible without traveling. The fastest way of traveling i

[单选题]Modern life is impossible without traveling. The fastest way of traveling i

[单选题]Modern life is impossible without traveling. The fastest way of traveling i

[单选题]Modern life is impossible without traveling. The fastest way of traveling i

[单选题]Modern life is impossible without traveling. The fastest way of traveling i

[单选题]Modern life is impossible without traveling. The fastest way of traveling i

[单选题]Modern life is impossible without traveling. The fastest way of traveling i