承受压力的焊缝,其焊接接头一般不允许采用()。
参考答案:搭接接头
Hi, Mike. I’ve to borrow your car this afternoon mine _______ in the garage.
A.is repairing
B.is being repaired
C.has repaired
D.has been repaired
肺结核最常见的全身性中毒症状为()
A.发热
B.盗汗
C.消瘦
D.贫血
E.食欲不振