1979年WH0将冠心病分为()
A.5型
B.6型
C.3型
D.2型
E.4型
参考答案:A
.
An official said the plan had also taken migrant workers into account, ________ medical care would be provided even if they didn’t have a stable job.
A.for whom
B.for which
C.with whom
D.with which
下列四组物质中,均属于氧化物的是
A.氧气、氧化钙、四氧化三铁
B.水、二氧化硫、高锰酸钾
C.冰水混合物、氧化铜、氧化汞
D.一氧化碳、氧化镁、二氧化锰