肺结核治疗原则。
参考答案:
肺结核的治疗原则:早期、联合、适量、规范、全程。
A new house ___ at the corner of the road.
A.is building
B.is being built
C.been built
D.be building
向澄清的石灰水中通入二氧化碳,生成的沉淀是( )
A.CaCO3
B.CaO
C.Ca(OH)2
D.BaSO4