The scientist stephen hawking is well-known for using what assistive technology?
a) american sign language
b) speech-generating devices
c) video conferencing
d) all of the above

If you were running a marathon, which type of muscle fibers would be most useful to you? a. slow-twitch b. fast-twitch, type i a c. intermediate-twitch, type ii b d. slow-intermediate twitch, type i b select the best answer from the choices provided. a b c d