冰淇淋的包装可分为()。
A、纸盒包装
B、塑料容器包装
C、铝箔盒包装
D、简易包装
参考答案:A, B, D
There appeared an _____ look on her face on hearing the _____ story.
A.astonishing; astonishing
B.astonished; astonished
C.astonished; astonishing
D.astonishing; astonished
以2种浓度的质控物对某检验项目进行室内质控时,下列图形中箭头所指的"点"违背Westgard多规则质控方法质控规则中的().
A.41s
B.13s
C.22s
D.10xbaR
E.R4s