压力所引起的心理反应主要集中在（）方面。 ["个体认知能力","健康状态","情绪","行为反应"]
什么是过量空气系数？它与混合气浓度有什么关系？
简单非平衡式车轮制动器是指（）。 ["制动时前后蹄片压向制动鼓的力非常平衡","制动时前后蹄片压向制动鼓的力不平衡","前后蹄片在结构上非常平衡","前后蹄片在结构上非常不平衡"]
You are troubleshooting a one-way call problem with a Cisco 7920 wireless IP phone on a standalone WLAN. What may have caused this problem？（） ["The minimum data rate is not set to 11 Mbps.","Publicly Secure Packet forwarding is enabled.","The access point is set to the least congested channel.","An address resolution protocol has been disabled."]
患者，男性，15岁于3h前车祸撞伤右侧腹部，因腹部剧烈疼痛来院就诊。体检：脉搏115/min，血压70/40mmHg。全腹压痛反跳痛，以右上腹为重，移动性浊音阳性，肠鸣音消失。为确诊，最有意义的检查是（） ["胸部x线片","腹腔穿刺","静脉肾盂造影","侧定肌酐、尿素氮","心电图"]
垃圾焚烧有哪些特点？
