按第一类精神药品管理的是()
A.司可巴比妥
B.异戊巴比妥
C.麦角胺
D.士的宁
E.可卡因
参考答案:A
The news that he has won the first prize makes his parents _________ him. [ ]
A. proud of
B. proud in
C. be proud of
D. be proud in
钢丝绳端部用绳卡固定连接时,绳卡压板应在钢丝绳主要受力的一边,且绳卡不得正反交叉设置;绳卡间距不应小于钢丝绳直径的()倍;绳卡数量应符合规定