呼吸困难可分为
A.血原性呼吸困难
B.心原性呼吸困难
C.神经精神性呼吸困难
D.中毒性呼吸困难
E.肺原性呼吸困难
参考答案:A,B,C,D,E
根据要求改写下列句子(注意句首要大写)。
1.We have a computer lesson today. (将we 改为he)
a computer lesson today.
2.They are good friends.(改为一般疑问句)
good friends?
3.You must wash your hands now.(对画线部分提问)
must I now?
4.There are two computers in the room.(对画线部分提问)
computers there in the room?
5.Is this your ball?(改为同义句)
Is this ball ?
小腿胫骨前缘溃疡,骨质外露。首选的治疗方法是()。
A.游离植皮
B.肌瓣转移术
C.局部清创术
D.局部换药,一日2次
E.延期皮片移植