—Why do you like staying in Guiyang?—Because the weather there is too hot too cold.A. ei

问题补充：

—Why do you like staying in Guiyang?

—Because the weather there is too hot too cold.

A. either; or

B. neither; nor

C. both, and

D. not only; but also

答案：

A. either; or

(答案→)B. neither; nor

C. both, and

D. not only; but also

解析：连词的考查。根据句意“你为什么喜欢呆在贵阳，因为那里的天气既不太热也不太冷”，either …or…意为“或者…或者…”,是选择性的； both…and…意为“…和…”; not only…but also…意为”不但…而且…”递进关系，不符合。