根据《税收征收管理法》的规定，税务机关有权直接核定纳税人的应纳税额的情形有 A．依照

You’d better write down the phone number of that restaurant for future ______.[ ]

A. purpose

B. reference

C. progress

D. memory

用配方法将二次函数y=2x²-4x+5化为y=a（x-h）²+k的形式是______．

Many children, __parents are away working in big cities, are taken good care of in the village.

A．that

B．whose

C．which

D．whom

热用沥青胶由石油沥青基料、优质溶剂和复合填充料配制而成。( )

妊娠期生殖器官有哪些生理变化？