用尿液红细胞相差显微镜检查鉴别血尿来源,当尿中多形红细胞比率超过多少时可视为肾小球性血尿()
A.70%
B.90%
C.30%
D.10%
E.5%
参考答案:C
The mother makes her 12-year-old daughter _______ lessons after school.
She wants her to be a super movie star in the future. [ ]
A. take acting
B. take driving
C. give acting
D. to take acting
关于宫内节育器的避孕原理下列叙述正确的是
A.吞噬细胞作用
B.前列腺素作用
C.机械作用
D.抑制下丘脑-腺垂体-卵巢轴作用
E.催产素的作用