太阳对地球影响最大的是[ ]

A、太阳辐射

B、黑子

C、耀斑

D、太阳风

Only when _____ possible to settle the problem. [ ]

A. does the chief editor come will it be

B. the chief editor comes will it be

C. has the chief editor come it will be

D. the chief editor comes it will be