余锅排污有两种，一种叫（），另一种叫（）。
参考答案：连续排污；定期排污
After the Arab states won independence, great emphasis was laid on expanding education, with girls as well as boys ______ to go to school.
A．to be encouraged
B．been encouraged
C．being encouraged
D．be encouraged
根据所学内容列举夏、商、周三个朝代的建立时间、开国之君、都城、亡国之君，并将列举内容制成表格。
__________________________________________________________________________________________
