胆总管依行程可分为几段（）
A.二段
B.三段
C.四段
D.五段
E.六段
参考答案：C
肾上腺皮质激素治疗结核性脑膜炎的疗程是
A．2～3周
B．3～6周
C．6～8周
D．8～12周
E．3～6个月
In our own galaxy, the Milky Way, there are perhaps 200 billion stars, a small part of them probably have planets on which life is feasible.
A. a small fraction in which B. a small fraction of whichC. a small fraction which D. which a fraction of
