辩证的否定实质上是() ["A事物的外在否定","B事物的自我否定","C对事物的克服","D对事物的抛弃"]
“故水旱未至而饥,寒暑未薄而疾”中的“疾” 的含义是()。 ["疾苦","生病","缺点","憎恨"]
下列选项中不属于行政行为效力的是:() ["确定力","溯及力","公定力","执行力"]
土的CBR和回弹模量试验都是土的力学性能试验方法,根据现行土工试验规程回答下列问题。 测得1组试件的CBR值如下表,确定该组试件的CBR值为() ["13.0%","14.0%","14.3%","15.3%"]
调试测量发电机绝缘时,要求单相对地.两绕组间的绝缘电阻值大于(). ["5MΩ","50MΩ","500MΩ","2.2G&Omega"]
简述上世纪五、六十年代儿童文学创作的成就与不足。