What is the field of discourse？ 什么是话语范围？

What field of television is intended for specific interest groups？

A．Broad based.

B．Reconstituted.

C．Traditional.

D．Non-broadcast.

In what field might the example of Helen Keller be fit？

A．The field of special education.

B．The field of philosophy.

C．The field of compared literature.

D．The field of psychology.

What is the author's attitude towards technological advances in sports field？

A．Neutral.

B．Critical.

C．Subjective.

D．Enthusiastic.

A.string

B.a compass

C.a ruler

D./

What is the trip about？

A．A trip on business.

B．A trip for fun.

C．A field trip.

D．A trip for great scenic views.

Consider a uniformly charged semi-circle with charge Q and radius R, what is the electric field at the center point？ (3 significant numbers)

A.Finance

B.Education

C.technology

D.Healthcare

What kind of class went on the field trip？

A．Biology.

B．Photography.

C．Swimming.

D．Painting.

What have the two French geophysicists discovered in their research？

A．Some regularity in the changes of the earth's magnetic field,

B．Some causes of the fluctuation of the earth's magnetic field,

C．The origin of the earth's magnetic field.

D．The frequency of polarity reversals.