下列（）不能组成缓冲溶液。 A.HAC+NaAc B.NH4+NH4Cl C.H3P

Kate said “Hello” to Mr Patel as she entered. She picked up a wire basket and walked towards the back of the store 1_____ the rice was kept. The room was quite large and divided by three long aisles(过道), with rows of shelves full of 2­_____. Besides her and Patel there were only two boys in the store. They were both wearing 3_____ overcoats. They looked rather 4_____ because the overcoats were too big for them. “5_____”, she heard one of them whisper to 6_____. She walked on to the next aisle and found the 7_____ she was looking for. Then she heard something else. It 8_____ like a box dropping on the floor. She looked through the small open space 9_____ goods on the shelf and saw one of the boys picking up a box. But 10_____ putting it in the basket, he dropped 11_____into the inside pocket of his overcoat. Kate looked back and 12_____ see Mr Patel at the door checking through a list. Then she looked through the 13______ in the shelf again. The boys still had their backs to her. They were putting something 14_____into their inside pockets and then one of them said, “Let’s get out of here.” They moved away from her.

When she got to the door the two boys were 15_____ her. She watched them 16_____ for the few lings in their 17_____. They had both 18_____ their overcoats. Mr Patel did not seem to know what they had done. He even 19_____ at them as they were about to 20_____. Now Kate decided to stop them.

小题1:1.

A．which

B．that

C．there

D．where小题2:2.

A．books

B．baskets

C．goods

D．magazines小题3:3.

A．dirty

B．long

C．grey

D．tight小题4:4.

A．strange

B．young

C．nervous

D．excited小题5:5.

A．Look up

B．Listen to me

C．Watch out

D．Put it down小题6:6.

A．him

B．her

C．the boy

D．the other小题7:7.

A．book

B．rice

C．bag

D．magazine小题8:8.

A．looked

B．heard

C．showed

D．sounded小题9:9.

A．between

B．of

C．around

D．at小题10:10.

A．instead of

B．before

C．without

D．as if小题11:11.

A．something

B．it

C．one

D．that小题12:12.

A．would

B．should

C．might

D．could小题13:13.

A．spot

B．space

C．goods

D．books小题14:14.

A．important

B．new

C．else

D．extra小题15:15.

A．looking at

B．talking to

C．in front of

D．behind小题16:16.

A．paying

B．looking

C．asking

D．reaching小题17:17.

A．hands

B．pockets

C．box

D．basket小题18:18.

A．thrown out

B．put on

C．buttoned

D．hidden小题19:19.

A．shouted

B．smiled

C．looked

D．laughed小题20:20.

A．leave

B．pay

C．speak

D．apologize

某物体在空气中称重是10N，浸没在水中称重是6.8N，求这个物体的密度？（g取10N/kg）

调车作业发生挤岔事故怎么办？

作者称莎士比亚“无可争辩地应当获得‘酷似创造’这个赞语”，下列分析不能作为其理由的一项是：

A．莎士比亚孜孜不倦地追求诗句的对偶。

B．莎士比亚的作品不仅反映了大自然的对称，而且真实地再现了充满永恒对称的人类社会生活。

C．人世间遍存的冲突、对称在莎士比亚的作品中俯拾皆是。

D．莎士比亚作为一个文学艺术家，其本身的活动也体现了永恒的对称。

直流线路保护在逆变站能否动作？