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单项选择题

A．The admission of a patient.
B．Diagnosis of an illness.
C．The old man’’s serious condition.
D．Sending for a doctor.
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单项选择题It can be inferred from the passage that in the business world _________.

A．handsome men are not affected as much by their looks as attractive women are
B．physically attractive women who are in the public eye usually do quite well
C．physically attractive men and women who are in the public eye usually get along quite well
D．good looks are important for women as they are for men

单项选择题By saying they employ chemical warfare ( Line 4, Para. 2 ), Bruce Ames means _________ .

A．plants produce certain chemicals to combat pests and diseases.
B．plants absorb useful chemicals to promote their growth.
C．farmers use man-made chemicals to dissolve the natural chemicals in plants.
D．farmers use chemicals to protect plants against pests and diseases.