请听歌曲片段,判断是何拍子。
A. 2/4拍子
B. 3/4拍子
C. 4/4拍子
D. 3/8拍子
喷泉模型的优点是()。
A. 各个阶段可以同步开发
B. 增大了投资的早期汇报
C. 减少了软件需求不明确带来的开发风险
D. 降低了在一个增量上的开支风险
We believe that an explosive device had been left inside a ___________.
A. contain
B. contained
C. contains
D. container
Store the peppercorns in an airtight ___________ and grind the pepper as you need it.
A. contained
B. contain
C. container
D. containers