‍在结晶学中，晶胞的形状有7种，对应7个晶系。‌

单项选择题关于社区卫生服务的职责，不正确的是 A、社区卫生诊断 B、传染病疫情报告和监测 C、预防接种 D、结核病、艾滋病等重大传染病预防 E、危急重症治疗

单项选择题In he third paragraph 'scientific technology' is ______.A.the application of scientific knowledge to the skills of industryB.the application of science and industry to daily lifeC.science and industry' as the basis of progressD.the use of science and industrial techniques in gaining control of the universe