9. The major challenges of building Burj Dubai, one of the world’s tallest man-made structures, are the sandstorms and
_____ heat in that area.
(A) lousy
(B) intense
(C) cunning
(D) evident
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統計: A(10), B(51), C(32), D(15), E(0) #2132616
統計: A(10), B(51), C(32), D(15), E(0) #2132616