下列哪些现象中存在正反馈调节（） ["排尿过程","排便过程","分娩过程","血液凝固过程"]
试论审美主体与审美客体的关系。
毛泽东对黄炎培老先生讲，中共已找到跳出“其兴也勃焉，其亡也忽焉”的历史周期率的新路，这条新路是（）。 ["社会主义民主建设","社会主义法制建设","社会主义文化建设","社会主义经济建设"]
Refer to the exhibit. A company would prefer all Internet - bound OSPF routed traffic to use ISP ABC with ISP DEF as a backup. As the network consultant, what three configuration changes might you make?（） [" The default -information originate command should be configured on router B1 and B4."," The default -information originate command should be configured on router B2 and B3."," If the metric value for ISP ABC is set at the default, the I SP DEF metric value should be set to 1."," If the metric value for ISP ABC is set at the default, the ISP DEF metric value should be set to 25."," The metric type value should be set to type 1."," The metric type value should be set to type 2."]
唾液斑确定常采用淀粉消化试验，将少许淀粉液与检材浸出液作用后，再加碘液，若不显蓝色，表明检材（），若显蓝色，表明检材（）。
《管子・牧民》“四维不张，国乃灭亡”的四维是指（）。
