【单选题】在人的基本素质中,( )是最重要的素质。
【单选题】It's first time that he has been to the United States, ______?
【单选题】Who are the first to bear financial losses incurred by the bank?______.
C.
The bank capital shareholders
【简答题】积土成山,();积水成渊,();而积善成德,()。
【单选题】材料为YT40-1的压铸件上有一个小的通孔,孔的直径是4mm,那么以下哪个孔的深度是不合理的?