增加湿空气吹过湿物料的速度，则湿的平衡含水量（）。
A、增大
B、不变
C、下降
D、不能确定
参考答案：B
—Has your father finished his report?
—Sorry, I don't know. He _______ it this morning. [ ]
A. was writing
B. wrote
C. has written
D. had written
《信访条例》第十四条规定，信访人可以对哪些组织、人员的职务行为反映情况，提出建议、意见，或者不服哪些组织、人员的职务行为，可以向有关行政机关提供信访事宜？
