We need to know something about the structure and operation of science because ______.
A. it is not easy to understand the things that excite and frustrate the scientist
B. Science affects almost every aspect of our life
C. Scientists live in a specific subculture
D. It is easier to understand general characteristics of science
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A．The doctor is not at the office.B．The doctor doesn't want to see him.C．The doctor is
A. The doctor is not at the office.
B. The doctor doesn't want to see him.
C. The doctor is busy writing an appointment book.
D. The doctor has been fully engaged.
A．look upB．look downC．look awayD．lo0k back
A. look up
B. look down
C. look away
D. lo0k back
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