混合的目的是使
A.大小一致B.重量一致C.体积一致D.密度一致E.成分均匀
参考答案:E
解析:因为成分均匀是保证药品剂量准确,保证制剂产品质量,保证用药安全有效的重要措施之一。
Some old buildings _______ and a new stadium for Nanjing 2014 Youth Olympic Games is being built right there.
A.will be pulled down
B.have been pulled down
C.are pulled down
D.had been pulled down
超声心动图能测出心包积液,估计其液体量至少已达()
A.500ml
B.150ml
C.50ml
D.250ml
E.400ml