量取5mL硫酸,最好选用的仪器是( )
A.50mL量筒
B.100mL量筒
C.托盘天平
D.10mL量筒
使用量筒量取5mL硫酸时,为了减小误差,应选取量程略大于5mL的量筒.
故选D.
________ the book if you are free, and you will learn a lot about how to study English.
A.Read
B.Having read
C.To read
D.Reading
《素问·灵兰秘典论》说:"肝者,()()出焉。"