TSGR0004-2009《固定式压力容器安全技术监察规程》将压力容器的设计压力分为低压、中压、高压、超高压四个压力等级，具体划分如下：超高压（U）P≥（）MPa
A. 100
B. 50
C. 1000
D. 80
查看答案
一企业有两个生产同类产品的车间，A车间的凝聚力明显弱于B车间，但A车间的生产效率又明显高于B车间。请分析以上现象的成因以及上级主管部门提高B车间生产效率的对策。
Which three characteristics are unique to the buying process for A small business compared with the buying process for an enterprise?（）
A. much faster
B. focused primarily on cost
C. not constrained by formal RFP
D. technology focused
E. less educated
F. influenced by peer
铵态氮肥 ammonium nitrogen fertilizer
微信支付 
支付宝支付