良恶性胃溃疡的鉴别要点有哪些
参考答案:
答:良恶性溃疡鉴别要点,见表2—2—3。
This is the computer ______ Mum gave me for my birthday.
A.which
B.what
C.whose
D.whom
什么是结核性胸膜炎