B.tell readers the unforgettable experience of an astronaut C.show his concern for the present situation of space walk D.introduce what robots are likely to do for astronauts52.Why does the writer say Robonaut 2 is"The Real Deal"?A A.It may have the advantage for complex and small tasks...
The first kind of loneliness is temporary.This is the most common type.It usually disappears quickly and does not require any special attention.The second kind is situation---for example family problem the death of a loved one or moving to a new place.37. The third kind of loneliness is...