Refer to the exhibit. The network has been configured with H.323 gateways and gatekeepers as shown. Which statement is true when a call is placed？（） ["A gatekeeper is contacted to determine the correct local gateway to use.","A gateway will receive the call and forward a call request to the local gatekeeper.","A gateway will receive the call and forward a call request to the gatekeeper on the other side of the WAN","A gatekeeper will receive the call and forward a call request to the remote gateway."]
下列哪些属于不授予专利权的主题？（） ["紫草可治疗感冒的特性","治疗心脏病的方法","可使彩灯闪烁的电流","可喷出浓硫酸的防盗门"]
人民武装警察部队方面的法律制度，是指
小组活动（）。 ["比较适合师幼比例小的状况","适合活动的结构化程度高的状况","一般让幼儿在自己的发展水平基础上以自己的速度完成适合自己的学习任务","适合让儿童完成教师预定的某学科教学任务"]
军事训练方面的法律制度，是
葡萄球菌培养特性是什么？
