The engineers in this lab spent several weeks _______ their plans for the new bicycleA.cou
The engineers in this lab spent several weeks _______ their plans for the new bicycle
A.counting
B.stripping
C.elaborating
D.casting
The engineers in this lab spent several weeks _______ their plans for the new bicycle
A.counting
B.stripping
C.elaborating
D.casting
A.轻度危害(Ⅳ级):THI<35<br>
B.中度危害(Ⅲ级):THI≥35~<50<br>
C.高度危害(Ⅱ级):THI≥50~<65<br>
D.极度危害(工级):THI≥65
A.13 TLi的低5位(高3位未用)和THi的8位组成
B.13 THi的低5位(高3位未用)和TLi的8位组成
C.16 TLi的8位和THi的8位组成
D.8 TLi的8位
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