阿基米德式螺旋抽水机是古希腊科学家阿基米德在公元前3世纪为了将水从大船的船舱中排出而发明的。这个系统属于()
A.自然系统
B.人造系统
C.抽象系统
D.静态系统
参考答案:B
根据句意及首字母提示,补全单词。
1. Have you f_____ the cat and watered the plants?
2. Be sure to close the windows and l_____ the doors if you are the last person to leave.
3. It is my t_____ to use the bike, and you have rode it for several hours already.
4. What is the p_____ of his visit?
5. We s_____ believe that our government can keep the housing price in a proper level.
自2008年7月1日起,对所有新受理首次公开发行申请,中国证监会发行监管部将在发行人和保荐机构按照反馈意见修改申请文件后的( )个工作日内在网上公开招股说明书(申报稿)。
A.4
B.5
C.7
D.10