单选题 Since China announced its first HIV case more than twenty years ago, the country has moved from silence to brave assertions. And it has pushed itself to do more in the fight against the spreading epidemic. Chinese scientists announced that their research and development of HIV treatment has been developing. This bit of encouraging news was released by the Chinese Ministry of Science and Technology. Scientists say, over the past two years, China has successfully produced five of the 26 antiretroviral drags currently used as part of an already-established "Cocktail Therapy". The quality and effects of the drugs are to international standards. Chinese scientists have also worked out an optimal treatment plan for Chinese HIV patients. But they say there is a lack of qualified health workers who can guide HIV patients on taking their prescribed medication.Questions:

问答题 When was the first HIV case found in China?

问答题 How did China respond to its first HIV case?

问答题 What achievements have Chinese scientists made in their research of HIV treatment?

问答题 What is greatly needed in the optimal treatment plan for Chinese HIV patients?