．It is a(n)________ idea to keep a machine running all the time without any power supply.
A．reasonable B．absurd
C．proper D．exact
．It is a(n)________ idea to keep a machine running all the time without any power supply.
A．reasonable B．absurd
C．proper D．exact
B
absurd“荒谬的，可笑的”。句意：让一台机器在没有电的情况下一直保持运转是一个很可笑的想法。reasonable“合理的，有道理的”；proper“适当的，合适的”；exact“精确的”。