Questions 11-13 are based on the following passage. You now have 15 seconds to read the questions 11-13. What is the normal internal temperature of the body

A．All senses have their limitations.
B．Insects are more sensitive to colour than man.
C．Man has not fully utilized all his senses.
D．Man is not as good as animals in learning about the environment.

A．It is farming that gives human beings enough leisure time for sporting activities.
B．Farming is very important in human civilization because it saves human beings from risks and uncertainties of hunting for survival.
C．It is hunting that provides human beings with much simpler ways of obtaining meaty meals.
D．Sporting activities satisfy the desire of modern man to exercise hunting skills which his forefathers developed for survival.

A．At an art school.
B．At a newspaper office.
C．At a stadium.
D．At a publishing house.