Thefifthgenerationcomputers,wi

The fifth generation computers, with artificial intelligence, _____ and perfected now.

A．developed	B．have developed
C．are being developed	D．will have been developed

登录免费查看答案和解析

相关试题

Hearing the _______ news, we all felt_______ .

A．encouraging; encouraging	B．encouraged; encouraged
C．encouraged; encouraging	D．encouraging; encouraged

收藏答案/解析

_______the road, be careful.

A．While crossing

B．When cross

C．Crossed

D．Being crossed

收藏答案/解析

_______twice, he didn't want to try again.

A．Failed

B．Failing

C．Having failed

D．To fail

收藏答案/解析

　______a nurse, she knew how to take care of a patient.

A．Been

B．Being

C．To be

D．Be

收藏答案/解析

The______ look on his face suggested that he had passed the exam.

A．exciting

B．tired

C．tiring

D．excited

收藏答案/解析