被称为“先天之本”的是()
A.心
B.肝
C.肾
D.肺
参考答案:C
We suggest that you file a claim ______ the shipping company for all the losses incurred as a consequence of failure to ship the goods ______ Order No. 123 in time.()
A. against, unless
B. for, in
C. against, in
D. against, under
按二氧化碳灭火剂在储存容器中的储存压力分类,可分为高压贮存系统和()贮存系统。
A、中压
B、低压
C、高中压
D、中低压