問題詳情
【題組】6,The author mention “1.0mm”in line 14 in describing the
(A)thickness of a layer of organisms that was deposited on an object
(B)diameter of the fibers that were in the guncotton filters
(C)thickness of the microscope slides that were used
(D)size of the particles that that were collected
參考答案
答案：D
難度：適中0.666667
統計：A(0),B(0),C(1),D(2),E(0)