Question
21. Which TWO quotations describe promising
uses of the new technology?
O A. "After a
month in acid
even just kitchen
vinegar
the device is gone." (Paragraph 1)
0 B. "scientists could
build sensors to measure
heat or humidity in remote forests."
(Paragraph 3)
O C. "The
patients wouldn't need surgery to
remove the devices." (Paragraph 3)
J D. "To demonstrate the
new technology, Lei an
his team built a stretchy transistor"
(Paragraph 5)
0 E. "A transistor controls the flow of current in
electronics." (Paragraph 5)
F. "Iron also is more environmentally friendly
than gold, which has been used in other
stretchy electronics." (Paragraph 5)