[求助]

下面两道题，是xdf OLD BOOK里面的，我一点感觉也找不到，请高人指教

12. After graduating form high school, people rarely

multiply fractions or discuss ancient Rome, but they

are confronted daily with decisions relating to home

economics. Yet whereas mathematics and history are

required courses in the high school curriculum, home

economics is only an elective, and few students choose to take it.

Which of the following positions would be best

supported by the considerations above?

(A) If mathematics and history were not required

courses, few students would choose to take them.

(B) Whereas home economics would be the most

useful subject for people facing the decisions

they must make in daily life, often mathematics

and history can also help them face these decisions.

(C) If it is important to teach high school students

subjects that relate to decisions that will

confront them in their daily lives, then home

economics should be made an important part

of the high school curriculum.

(D) Mathematics, history, and other courses that

are not directly relevant to a person's daily

life should not be a required part of the high

school curriculum.

(E) Unless high schools put more emphasis on

nonacademic subjects like home economics,

people graduating from high school will

never feel comfortable about making the

decisions that will confront them in their

daily lives.

15. Human beings can see the spatial relations among

objects by processing information conveyed by light.

Scientists trying to build computers that can detect

spatial relations by the same kind of process have so

far designed and built stationary machines.

However, these scientists will not achieve their goal

until they produce such a machine that can move

around in its environment.

Which of the following, if true, would best support

the prediction above?

(A) Human beings are dependent on visual cues

‍form motion in order to detect spatial rela‍tions.

(B) Human beings can often easily detect the spatial

‍relations among objects, even when those

‍objects are in motion.

(C) Detecting spatial relations among objects

‍requires drawing inferences from the infor-

‍mation conveyed by light.

(D) Although human beings can discern spatial

‍relations through their sense of hearing,

‍vision is usually the most important means of

‍detecting spatial relations.

(E) Information about the spatial relations among

‍objects can be obtained by noticing such

‍things as shadows and the relative sizes of

‍objects.