【单选题】(2018.4单3;2016.4单1)人们在一定认识基础上确立的对某种思想或事物坚信不疑并身体力行的态度是 ( )
【简答题】ambition passion release attain destinationpursue idealobstacle vision accumulatePhysical exercise is a good way of ________ stress. You will feel rather refreshed.
【简答题】ambition passion release attain destinationpursue idealobstacle vision accumulateThe proposal offers a(n) ________ opportunity for youngsters to get training.
【简答题】(In spite of all her trouble) she always gives the appearance of being happy.
【单选题】硫酸普拉睾酮中硫酸盐的检查:取本品0.50g,置50ml纳氏比色管中,加丙酮-水(1:1)40ml后,加稀盐酸2ml,摇匀,加25%氯化钡溶液5ml,用水稀释至刻度,摇匀,置30-40°C水浴中放置10分钟,依法检查(ChP2015通则0802),其限量为0.03%,请问应取标准硫酸钾溶液(100μg SO4/ml)多少毫升?
【简答题】ambition passion release attain destinationpursue idealobstacle vision accumulateStudents should ________ their own interests, as well as do their school work.
【判断题】从逗留时间方面看,国内旅游者在旅游地的逗留时间一般较短,而国际旅游者在旅游接待国的逗留时间通常比前者长。
【判断题】信念是人们在一定的认识基础上确立的对某种思想或事物坚信不疑并身体力行的心理态度和精神状态。
【简答题】酸度检查;取本品0.50g,加水10ml溶解后,加甲基红指示液1滴,如显红色,加氢氧化钠滴定液(0.02mol/L) 0.50ml,应变为黄色。称取重量可为( )g,选择分度值( )g天平称量。