A.To justify the study of the Boston University Medical Center. B.To stress the importance of maintaining proper weight. C.To support the statement made by York Onnen. D.To show the most effective way to lose weight.
A.its B.which C.whose D.what
A.appliance B.equipment C.utility D.facility
A.of B.in C.by D.from
A.component B.element C.item D.particle
A.run B.interval C.period D.time
A.are advised not to give them aspirin B.should watch out for signs of Reye syndrome C.are encouraged to take them to hospital for vaccination D.should prevent them from mixing with people running a fever
A.one should identify the virus which causes it B.one should consult a doctor as soon as possible C.one should take medicine upon catching the disease D.one should remain alert when the disease is spreading
A.reserve B.decorate C.store D.keep
A.the Clean Air Act has not produced the desired results B.lead deposits in arctic snow are on the increase C.lead will stay in soil and snow longer than expected D.the US is the major source of lead pollution in arctic snow
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