测量外圆时,常用的量具有游标卡尺百分尺卡尺等;测量内孔时,常用的量具有(),塞规
参考答案:游标卡尺
上呼吸道最先受累的血管炎病是()
A.Wegener肉芽肿
B.颞动脉炎
C.变应性肉芽肿血管炎
D.大动脉炎
E.超敏性血管炎
The threats to the health of astronauts in space are very different from ______ on earth.
A.ones
B.that
C.it
D.those