产褥感染、流产后感染扩散的主要途径是（）
A.沿生殖器黏膜上行蔓延
B.经淋巴系统蔓延
C.血性播散
D.直接蔓延
E.以上全有
参考答案：B
根据句意和提示写出单词。
1. —When is your b_____, Maria?
—My birthday is August 10th.
2. Mr.Smith's daughter is eleven y_____ old this year.
3. Every year they have an Art F_____.
4. J_____ is the first month of a year.
5. I like listening to relaxing m_____ in my free time.
6. I know your a_____. You are twelve years old.
卧式测长仪主要用于测量工件的平行平面,外球形面及内、外圆柱形表面的尺寸，也可以测量内、外螺纹的中径、螺距等。
