单项选择题
A. Providing them with qualified doctors. B. Keeping people away from sick people. C. Keeping people away from sick chickens. D. Providing them with sufficient medicines.
A.The result is unexpected to her. B.She feels sorry for the findings. C.It is not a surprise. D.It is exciting and inspiring.
A. The high temperatures required for its use. B. The high cost of materials used in its production. C. The lack of trained environmental engineers. D. The opposition of automobile manufacturers.