生产、储存剧毒化学品的单位发现剧毒化学品、易制爆危险化学品丢失或者被盗的,应当立即向当地( )报告。
A.安全生产监督管理部门
B.公安机关
C.人民政府
参考答案:B
用所给单词的适当形式填空。
l. Mr Brown _____ (go) to his office by bike every day.
2. Why not _____ (go) to the zoo by bus?
3. It ____ (take) about 15 minutes to walk.
4. There _____ (be) many deer in the forest now.
5. There must _____ (be) many sheep.
6. Kate is walking to her home ____ (quick).
软件定义时期主要包括 【4】 和需求分析两个阶段。