焊接作业所使用的气瓶应存放在下列哪种地方()
A.阴凉而空气流通的地方
B.隔烟房内
C.密闭地方
参考答案:A
—Do you know the teacher ____ classes are interesting and exciting?
— Yes, she is Mrs. Zhang.
A.which
B.whose
C.who
D.that
医院药学部门的法定任务有哪些?