【单选题】One of the major problems of nuclear energy is the inability of scientists to discover a safe way to dispose of the radioactive wastes which occur throughout the nuclear process. Many of these wastes ...
A.
the nuclear process involving the danger of radioactivity at its every stage
B.
fuel for nuclear reactors producing dangerous wastes
C.
the weakness scientists have found in every previous methods
D.
the nature of nuclear wastes together with their lengthy life span
【单选题】Charles Darwin, an English naturalist and the discover of natural selection published his theory with compelling evidence for evolution in his 1859 book __________.