从发音部位看是双唇音，从发音方法看是鼻音的声母是（）。
过去经历过的事物不在眼前，消费者将其重新呈现的现象是（） ["再认","再现","联想","保持"]
You just issued the following statement: ALTER TABLE SALES DROP COLUMN PROFIT. Which of the following choices identifies when the column will actually be removed from Oracle?（） ["Immediately following statement execution ","After the ALTER TABLE DROP UNUSED COLUMNS command is issued ","After the ALTER TABLE SET UNUSED COLUMN command is issued ","After the ALTER TABLE MODIFY command is issued"]
约束后护理注意点，不正确的是（） ["患者入睡后不必解除约束带，以防坠床","长时间约束者注意肢体位置的变换","经常巡视，并做好记录","交班时做好详细的床头交班"]
一般而言，社会成员中，通货膨胀的受害者是（）。 ["政府","企业","居民","投机商"]
汽车行驶阻力有：加速阻力、（）、（）、（）。
