原发性肺结核最典型X线征象是（）。
A.肺内侵润阴影
B.肺门淋巴结肿大
C.纵隔淋巴结肿大
D.哑铃状双极征
E.胸腔积液
参考答案：D
根据句意及首字母提示补全单词。
1. They have to w______ sports shoes for P.E. class.
2. Don't f______, you are classmates.
3. He is a c______ boy, he can answer the king's questions.
4. —Do you like a______? —Yes, I like cats best.
5. Would you like some orange j______?
剞的方法一般采用（）、推刀剞、拉刀剞，深度为原料的4/5。
A、跳刀剞
B、直刀剞
C、滚刀剞
D、侧刀剞
