Only through the united efforts of people with hope,____be fully safe against the misuse of the science and ____best serve mankind in the future .
A can we ; can science
B we can : can science
C can we ; science can
D we can ; science can
我只晓得第一空应该填can we ,不晓得第二空要不要也跟着倒装呢!!回答的时候说点理由哦