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问题
填空题
可燃有机岩分为（）和（）。
答案
参考答案：煤；油页岩
选择题
Susan decided not to work on the program at home because she didn't want her mother to know what she _____.
A. has done
B. had done
C. was doing
D. is doing
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单项选择题
______没有权力制定规章。( )
A．国家发展和改革委员会
B．国务院办公厅
C．人事部
D．审计署
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