评价结论合格的条件是：被评价单位采纳评价机构提出的补充安全技术和管理对策，提高安全设施配置且在日常管理上保证安全设施的可靠性和（）。
参考答案：有效性
Mary _____ to school last week because she _____ill. [ ]
A. didn't go, was
B. didn't went, was
C. doesn't go, is
D. not went, was
魏建国《题长江三峡联》：“三峡不锁蚊龙出，天险瀛寰傲峙；九派无穷银汉来，神州物态易新”中的“九派”是指()。
