冲压无缝弯头是用优质碳素钢、不锈耐酸钢和低合金钢无缝钢管,在特制的模具内压制成型的,其种类有()弯头。
A.45°
B.90°
C.120°
D.180°
参考答案:A, B
外科感染中急性感染是指()
A.病程在3周~1个月
B.病程在3周以内
C.病程在3周~2个月
D.病程超过1个月
E.病程超过2个月
Althogh she didn’t know the best way of getting to places, she insisted that she __________ the trip properly .
A.organized
B.organizes
C.would organize
D.organize