Cell phones were used for making calls.
A. 对
B. 错
PDAs gains wireless connectivity and were not able to send and receive E-mail.
A. 对
B. 错
Smartphones allow individual users to install, configure and run applications of their choosing.
A. 对
B. 错
Most standard cell-phone software offers a lot of choices for re-configuration.
A. 对
B. 错