肺癌引起的阻塞性肺炎与一般肺炎区别有以下几点,不正确的是()
A.体积缩小
B.有支气管充气像
C.同一部位反复发作
D.合并肿块
E.常有淋巴结肿大
参考答案:B
The time and effort he has devoted during the past few years____ trees in that remote area is now considered to be of great value.
A.to plant
B.to planting
C.plant
D.planting
汉字输入编码方案中的自然码属于( )类编码。
A.数字
B.字音
C.字形
D.混合