（）是指以保护和改善人类生存环境、维持生态平衡、保存物种资源、科学试验、森林旅游、国

_____ full preparations, we decided to put off the party till next week. [ ]

A. We did not make

B. Having not made

C. We had not made

D. Not having made

胃、胆、膀胱的下合穴在本经，大肠、小肠的下合穴在____，三焦的下合穴在____经。

公司通知存款包括（）

A.一天通知存款

B.七天通知存款

C.15天通知存款

D.30天通知存款

A "Backgrounder" permits newspapermen to publish information given them though without attribution to the source.

A. a person who remains behind the scene
B. a person providing the background knowledge
C. a press conference
D. a news agency

限制功率的液压系统实质上是限制（）。

A.最大工作压力

B.液压马达转速

C.工作压差和流量的乘积

D.液压马达的扭矩