当期不能完成的建造合同,其合同收入应()。
A.在资产负偾表日确认
B.在完成前估算确认
C.在实际完成后确认
D.在合同规定工期期满时确认
参考答案:A
My mother suggested that not only ______ study hard myself but also _____help my sister. [ ]
A. I should; I should
B. should I; should I
C. should I; I should
D. I should; should I
铆钉连接件受力如图,则受力最大的铆钉为()。
A.A
B.B
C.C
D.D