Anderson's early success has
A. greatly speeded the development of medicine
B. brought no immediate progress in the research of gene-therapy
C. promised a cure to every disease
D. made him a national hero
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______stations can increase to full power very quickly?
______may affect the downstream water quality and have an impact on plant life?
______can promote tourism development?
From the passage, we learn that the author
A. didn't like Raoul's way of delivering the paper
B. didn't realize why Raoul delivered the paper that way
C. didn't know that Raoul came very early in the morning
D. didn't feel it necessary to meet Raoul when he came