The sunspot hurricane is about______times higher than a tropical hurricane on Earth.A．10B．

— What is the training about？— _______A、It is about the latest flood－proof design of hou

The passage is mainly concerned with______.A．the components of sunspotsB．sunspots acting l

— What is the training about？— _______A、It is nothing.B、It is about one month.C、It is ab

The passage is mainly about_______.A. the importa

The author is talking about_________in the first

The new policy ______ is about the tax reduction