单项选择题
A．Poor management of the hospital. B．The health hazard at her work place. C．Decisions made by the head technician. D．The outdated medical testing procedures.
A．She can count on the man for help. B．She has other plans for this weekend. C．She has other plans for this weekend. D．She has got camping gear for rent.
A．They are indispensable to writing term papers. B．They play an irreplaceable role in their study. C．They are inferior to e-books in many ways. D．They will be replaced by e-books some day.