The small size of the components of computer chips has proved unstoppable. In each new (1) , those components are smaller and more tightly packed than they were in their predecessor. (2) has been so rapid that chip designers are (3) apparently fundamental barriers to further reductions in size and increases in density. In a small size version of the (4) to wireless communication in the macroscopic world, a group of researchers led by Alain Nogaret, think they can make chips (5) components talk to each other wirelessly.
The researchers (6) to use the standard print techniques employed in chipmaking to coat a semiconductor with tiny magnets. These magnets will (7) local magnetic fields that point in opposite directions at different points (8) the chip’s surface. Electrons have a (9) called spin--that is affected by magnetic fields, and the team hopes to use a/an (10) called invers
A. whom
B. what
C. whose
D. which
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