11. A program for developing a space shuttle involves tremendous expense of time, money and
manpower.
(A) enormous
(B) jealous
(C) prosperous
(D) suspicious
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統計: A(498), B(118), C(199), D(85), E(0) #1277855
統計: A(498), B(118), C(199), D(85), E(0) #1277855