[问答题] 现实主义的重要特征是？

Examine the data from the ORDERS and CUSTOMERS table. Which SQL statement retrieves the order ID, customer ID, and order total for the orders that are placed on the same day that Martin places his orders?（） ["","","",""] 浮选机的爆气机（）级撇油机（）套 ["2级2套","4级2套","2级4套","4级4套"] 下列说法中错误的是（）。 ["养老护理员所服务的对象、工作内容要求服装、服饰要符合职业的要求","在穿着方面，要注意衣服各部位不要裸露太多，以得体为宜，不要过于花哨","上班时应穿工作服，注意工作服的清洁、整齐，有污染时及时更换","缺扣子时要立即缝上，无针线时用胶布等粘贴衣扣或开线处"] 往复活塞式压缩机组装后的检验内容及方法有哪些？ 旁通管线强度试验压力（） ["管线运行压力的1.25倍","等于管线运行压力","管线运行压力的1倍","管线运行压力的2倍"] 现实主义的重要特征是？