采煤工作面工程质量分为部级、省级、局级三个等级。
参考答案：对
用所给词的适当形式填空。
1. John __________(play) football next Sunday.
2. —Will you go swimming with me tomorrow?
—If I __________(be) free, I will.
3. They're singing and dancing ____________ (happy) .
4. Don't make noise, my father __________ (sleep) .
5. What ____________ you ____________(do) just now?
( )是我国近代第一个由政府颁布的，并在全国范围内实施的学制。
A．壬寅学制B．癸卯学制C．壬子癸丑学制D．壬戌学制
