将三个相同的电容为C的电容器串联,总电容为()C。
A.3
B.1/6
C.1/3
参考答案:C
---Do you think the micro-blog really_______ a platform_______ people to show their opinions?
---Yes, I think so.
A. offers; for B. provides; for C. provides; with
关于羊水,下列哪项是正确的()。
A.妊娠末期羊水无色透明
B.羊水中若含肌酐应视为病态
C.妊娠40周时羊水量最多
D.妊娠38周时羊水量约1000ml
E.羊水呈弱酸性