RA所致肺间质病变的临床特点是()
A.早期诊断有赖高分辨CT检查
B.部分病人可有气短及肺功能不全
C.少数可出现慢性纤维化肺泡炎
D.以上都是
E.临床常无症状
参考答案:D
His health failing, ____ last year.
A.so the school gave Mr. Smith leave
B.the school had given Mr. Smith leave
C.so Mr. Smith went on leave from work
D.Mr. Smith went on leave from work
IQ为100的人是最聪明的人。