热带现代农业基地建设的主要项目是什么？

生活在水里，用鳃呼吸，体表被有鳞片的动物是[ ]

A．乌龟

B．鲤鱼

C．海豚

D．珊瑚虫

Battery-operated slippers are used for _______ and were invented by _______. [ ]

A. seeing in the dark; Chelsea Lanmon

B. seeing in the dark; Julie Tompson

C. scooping really cold ice cream; Jayce Coziar

D. changing the style of the shoes; Jamic Ellsworth

--- What’s in your bag?

--- In it            two books.

A．has

B．have

C．is

D．Are

除民用爆破器材生产企业外，其他企业安全生产许可证的发证机关实行( )分工负责的体制。

A．一级
B．两级
C．三级
D．四级

深磨法