对具有防洪任务的（）水库应进行调洪演算或收集调洪演算成果。
A、大型水电厂
B、中型水电厂
C、重点水电厂
D、所有水电厂
参考答案：C
The Education Department says that school safety has set off alarm bells with frequent reports of serious
accidents______ students got injured or killed. [ ]
A. after which
B. in which
C. by which
D. for which
工程造林自查内容有哪几项？
