评价学生发展的教育常模参照,可以采用()等。
A.年级常模参照
B.年龄常模参照
C.百分等级常模参照
D.分等评定常模参照
E.标准分数常模参照
参考答案:A, B, C, D, E
To our _____, the naughty boy finished his homework by himself and there were no mistakes.[ ]
A. surprised
B. surprising
C. surprise
D. surprises
根据《煤矿重大安全隐患认定办法(试行)》之规定:有冲击地压危险的矿井配备专业人员并编制专门设计的,属于煤矿重大安全生产隐患。