Writing a comment after each lesson is a useful habit for a teacher to get into.()
()凭证是为网络上下载的软件提供凭证。 ["软件","个人","企业","银行"]
根据马斯洛的需要层次理论,下列属于受尊重需要的是()。 ["情感","成功","自尊","食物"]
船舶含油污水在内河的排放浓度不得大于()mg/L。 ["15","20","30","50"]
f[f]、h[x]属于塞音。
精确制导武器的主要特点有哪些?