大叶性肺炎多见于
A．青壮年B．老年人C．婴幼儿D．青少年E．以上都是
参考答案：A
解析： 大叶性肺炎多见于青壮年。
As the final exam is just around the corner, all the students are in reviewing the lessons carefully. [ ]
A. occupied
B. practising
C. busying
D. devoted
