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问题
判断题
锅炉停炉后禁止将燃料送入已灭火的锅炉。
答案
参考答案：对
选择题
She _____ on a new novel ever since this summer and it is supposed to _____ at the beginning of 2011.
A. had worked; be published
B. had been working; have published
C. has worked; publish
D. has been working; be published
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单项选择题
2，8，4，3，9，6，4，12，（）。
A．6
B．7
C．8
D．9
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