When demonstrating small objects, it is best to hold them up so the camera can get a better shot of them

Name the pickup pattern which the microphone can hear best from the front

a. ominidirectional b. unidirectional c. directional d. bi-directional

The secret of ________ was discovered and perfected in China, and for hundreds of years potters elsewhere failed to duplicate it.

A. ivory B. terra cotta C. porcelain D. stained glass