A. It is not enough to learn a foreign language for three years.
B. It requires time and effort to master a foreign language.
C. A child can learn a foreign language better if her mother is around.
D. A child can learn a foreign language faster than an adult.

慢性肾炎高血压与高血压肾病鉴别，后者较突出表现是

A．高血压

B．肾小管功能受损早于肾小球功能受损

C．贫血

D．肾功能减退

E．少量蛋白尿