下列选项中不属于PhotoshopCS3提供的选择工具是( )A．快速选择工具 B

小题1:The Summer Camp will last for _______.

A．two days

B．a month

C．more than a month

D．less than a month小题2:Who can join the Summer Camp?

A．Children over two years old.

B．Boys and their parents.

C．Girls over the age of 18.

D．All children aged 3-16.小题3:Which of the following courses are provided for the children of different ages?

A．Public Speaking, English, GK.

B．English, Basic French and Dance.

C．Dance, Art & Craft and Personality Devp.

D．Personality Devp, Dance and English.小题4:If you want to join the Summer Camp, you’d better _______.

A．book your seat as soon as possible because the seats are limited(有限的)

B．surf the webs as soon as possible

C．make a telephone call to them

D．email them as soon as possible小题5:From the poster of the summer camp, we know _______.

A．the camp is free of charge

B．children aged 3-5 have more courses

C．we can book the seats only in two ways

D．the summer camp has courses mainly in the afternoon

What was it ________you found in the hotel?

A．that

B．which

C．and

D．this

公司可以解散的情形包括( )。

A．营业期限届满

B．股东大会决议解散

C．董事会决议解散

D．因合并需要解散

E．被依法吊销营业执照

已知CO和O₂的混合气体14.4g，在一定条件下完全反应，得到CO和CO₂的混合气体，在标准状况下所占的体积为8.96L．则反应后混合气体的平均摩尔质量为______，产物中CO₂的物质的量为______mol，原混合气体中，O₂的物质的量为______．

什么是接零保护？