采血室，成分室空气菌培养的质量标准是什么？
参考答案：
杂菌数≤30个，无真菌。
One more week, ______ we will not accomplish the task.
A．and
B．so that
C．or
D．if
The nurse is evaluating a client’s lung sounds. Which of the following breath sounds indicate adequate ventilation when auscultated over the lung fields()
A. Vesicular.
B. Bronchial.
C. Bronchovesicular.
D. Adventitious.
