数字签名可有效地实现电子商务参与者的身份认证

I like movies best. Last week, I   36   a movie called I, Robot . It tells us a story about the future with robots.  It is the year of 2035 and people can see robots everywhere. Robots can help people do a lot of things, like looking   37  the old people or babies, washing, cooking, cleaning or taking dogs for a walk. Robot does everything people ask them to do   38 . But a policeman    39  Spooner doesn’t like robots. Because he doesn’t think that people can live well   40  robots.

小题1:	A．watched B．watch C．saw D．see

小题2:	A．at B．after C．for D．up

小题3:	A．good B．nice C．well D．fine

小题4:	A．name B．call C．calling D．called

小题5:	A．and B．with C．without D．or