下各组词语中加点的字，与所给读音不全相同的一组是：（ ） A．间jiàn 间断 间或 间歇 挑拨离间 B．冠guān 夺

一个物体受到三个共点力的作用，如果这三个力的大小如下各组情况，那么不可能使物体处于平衡状态的一组是（　　）
A. 4N，8N，7N
B. 8N，8N，1N
C. 4N，6N，1N
D. 4N，5N，1N

ing形式连接一下各组句子,必要时可做其他改动
I felt the hotel.I met an old friend of mine.(on)
she can be very rude.she's capable of it.
i didn't phone you yesterday .i must apologize.
his favouite sport is fishing.he's very keen on it.
she keeps fit.she's always been interested in it.

ing形式连接一下各组句子,必要时可做其他改动
1.He'll tell you what he thinks.He's not afraid of it.
2.I won the competitian.You should congratulate me.

用所给单词连接一下各组句子,可做必要改动
所给单词：who that which whose who(m) -or nothing!
1.He is the pilot.He flew our plane.
2.She is the teacher.She takes our class
3.The Nile is a river.It used to flood every year.
4.They are the sailors.They work on this ship.
5.He is the man.I borrowed some money from him.
6.She is the woman.I wrote a letter to her.
7.She is the woman .Herson won the school prize.
8.Is that the boy?Is his father a teacher?
9.These are the letters.I've had them from friends in Europe
10.These are photos of the friends.They have written to me from Europe.

在无色强酸性溶液中,下各组离子能够大量共存的是什么,为什么?               1.氯离子,钠离子,硝酸根离子,钙离子         2.氨根离子,碳酸氢根离子,氯离子  ,钾离子         3.钾离子,钡离子,氯离子,硫酸根离子      4.铜离子,氨根离子,碘离子,氯离子

一个物体受到三个共点力的作用，如果这三个力的大小如下各组情况，那么不可能使物体处于平衡状态的一组是（　　） A．4N，8N，7N B．8N，8N，1N C．4N，6N，1N D．4N，5N，1N