Which of the following statements is NOT TRUE?
A.Body temperature may serve as an indication of a worker' s performance.
B.The selection of a number of permanent night shift workers has proved to be the best solution to problems of the round-the-clock working system.
C.Taking body temperature at regular intervals can show how a person adapts to the changes of routine.
D.Disturbed sleep occurs less frequently among those on permanent night or day shifts.
第1题
CT机将X线锥形射束转化为扇形射束的部件是
A.滤过器
B.准直器
C.窗口
D.探测器
E.定位系统
第4题
CT机将X线锥形束转化为扇形束的部件是
A.滤过器
B.准直器
C.窗口
D.探测器
E.定位系统
第5题
CT机将X线锥形束转化为扇形束的部件是
A.滤过器
B.准直器
C.窗口
D.探测器
E.定位系统
第6题
CT机将X线锥形束转化为扇形束的部件是
A.滤过器
B.准直器
C.窗口
D.探测器
E.定位系统
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