质量检验是通过观察和判断,适当时结合测量、试验所进行的符合性评价,请问质量检验除了把关和报告功能外,还有哪两项功能?
参考答案:
1、鉴别功能
2、预防功能
______any trouble with the boiler, the automatic controlling unit will cut off the fuel oil supply.
A.There should be
B.If there had been
C.Should there be
D.If there was
目前公认糖尿病是一种单一病因所致的疾病。