(21) summary of the physical and chemical (22) of life must begin, not on the Earth, but (23) the Sun; in fact, (24) the Sun’s very center. (25) is here that is to be found the (26) of the energy that the Sun constantly (27) space (28) light and heat. This energy is liberated at the center of the Sun as billions upon billions of nuclei hydrogen atoms (29) each other and (30) to form nuclei of helium, and, (31) doing so, (32) some of the energy that is stored in the nuclei of atoms. The output of light and heat of the Sun (33) that some 600 million tons of hydrogen (34) helium in the Sun every second. This the Sun (35) for several thousands of millions of years.

A．Telling a story from the author’s point of view in a way that implies both the author’s and the reader’s ironic distance from the dramatic unfolding of events
B．Telling a story as a mystery in which the reader must deduce, from the conflicting evidence presented by several narrators, the moral and philosophical significance of character and event
C．Telling a story in a way that both directs attention to the incongruities among the points of view of several characters and hints that the plot has a significance other than that suggested by its mere events
D．Telling a story in such a way that the author’s real intentions are discernible only through interpretations of allusions to world outside that of the story

A．The psychological profile of those people who are able to delay gratification as against people’s inability to control their lives completely.
B．The ability of some people to dive to great depths as against most people’s inability to swim long distances.
C．The greater lung capacity of mountain peoples that helps them live in oxygen-poor air as against people’s inability to fly without special apparatus.
D．The ability of most people to see all colors of the visible spectrum as against most people’s inability to name any but the primary colors.