公安领导工作，主要是指公安机关首长和人民警察所从事的工作．( )
参考答案：错
解析：公安领导工作，主要是指公安机关首长所从事的工作．
When I got to school, Amy ______ his homework. [ ]
A. had invented
B. had finished
C. had developed
D. had rushed
温病日晡潮热，时有谵语，大便秘结，腹部胀满硬痛，苔黄燥，脉沉实，治宜选用（）
