人体的消化系统是由____和消化腺组成的．
为了配制50g 5%的氯化钠溶液，需进行如下操作：①计算；②用托盘天平称量____ g 氯化钠；③用____ （填“10mL”或“50mL”）量筒量取 ____ mL水；④配液．配制溶液时用到的仪器有____、____ 、____ 、____ 烧杯和药匙．玻璃棒在实验中的作用是____ ．
﹣ The novel seems a little boring.
﹣You won't enjoy it you put your heart into it.
