自考《英语（二）》试题练习：填句补文（9.07）
2015-09-07 10:32 自考365
单选题
1.【填句补文】 Although the researchers have only just made the technical details of the microscope public, it is already on sale. It is currently the size of a refrigerator and takes several minutes to scan a circuit, but Xiao and Schrag are working ________.
A.to take tiny chips we require
B.to making chips any smaller
C.to shrink it to the size of a desktop computer and cut the scanning time to 30 seconds
D.of conducting electricity
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