空气呼吸器适用于什么场所？
参考答案：
适用于缺氧、有毒气体成分不明或浓度较高的环境。
2005重庆, 27） __________, he talks a lot about his favorite singers after class.
A．A quiet student as he may be
B．Quiet student as he may be
C．Be a quiet student as he may
D．Quiet as he may be a student
男，8岁，头痛伴呕吐，左眼视物不适5天，根据所提供图像，最可能的诊断是（）
A.左侧脑室）脑膜瘤
B.左侧脑室）室管膜瘤
C.左侧脑室）脉络丛 * * 状瘤
D.左侧脑室）胶质瘤
E.左侧脑室）少枝胶质细胞瘤
