①取水样10.0mL于锥形瓶，加入10.0mLKI溶液（足量），滴入指示剂2﹣3滴．
②取一滴定管依次用自来水，蒸馏水洗净，然后注入0.01mol•L﹣1的Na2S2O3溶液，调整液面，记下读数．
③将锥形瓶置于滴定管下进行滴定，发生的反应为：I2+2Na2S2O3=2NaI+Na2S4O6．
试回答下列问题：
下列词语的书写无误的一项是（ ）
根据短文内容，选择正确答案。
Dabing and Xiaowei usually go to school by car. They drive past a cinema, a supermarket and a toy shop. The toy shop is next to the supermarket. Yaya and Xiaoli usually go to school by bus. They go past a bank and a post office. The bank is next to the post office. Longlong usually goes to school by bike. He passes by a police station, a library and a swimming pool（游泳池）.
在：0，﹣2，1， 12 这四个数中，最小的数是（ ）
