液压系统右系统油箱装在:()
A、右发动机吊舱
B、右主轮舱
C、左主轮舱
D、右机翼-机身整流罩
参考答案:A
紫外线杀菌的最佳波长是()。
A.254nm
B.245nm
C.250nm
D.452nm
E.425nm
(2014·山西部分重点高中高三联考)Mrs Black had such a wonderful time________she visited her friends in Sydney last year.
A.when
B.that
C.which
D.as