下图为特异性免疫的有关过程，请据图回答：若切除某小狗的胸腺，则其免疫状况是（）

依次填入下列横线处的词语，最恰当的一组是

①这场涉及3个公司的债务纠纷案，经地区中级法院多次       ，终于圆满结束了。

②这里，一个亟待解决的问题，是切实       科研时间。

③一词多义在文言文中是常见的，推断词义时，须看上下文的，切不可       断定。

A．斡旋保障遽然

B．调解保障遽然

C．调解保证贸然

D．斡旋保证贸然

(A)

Last Friday a storm swept through two villages in the New Territories, destroying fourteen homes. Seven others were so badly damaged that their owners had to leave them, and fifteen others had broken windows or broken roofs. One person was killed, several were badly hurt and taken to hospital, and a number of other people received smaller hurt. Altogether over two hundred people were homeless after the storm.

A farmer, Mr. Tan, said that the storm began early in the morning and lasted for over an hour.

"I was eating with my wife and children," he said, "When we heard a loud noise. A few minutes later our house fell down on top of us. We tried our best to climb out but then I saw that one of my children was missing. I went back inside and found him, safe but very frightened."

Mrs. Woo Mei Fong said that her husband had just left for work when she felt that her house was moving. She ran outside at once with her children.

"There was no time to take anything," she said, "A few minutes later, the roof came down."

Soldiers helped to take people out of the flooded area and the welfare department brought them food, clothes and shelter.

The underlined word "shelter" in this passage means（）

A. something to eat

B. something to wear

C. somewhere to study

D. somewhere to stay

机组空载启动后加入励磁时，因交变磁场的作用以及定子铁芯合缝不严或铁芯松动而产生的震动叫做冷态振动

囊肿的声像图特征是

A．边界回声不定
B．外形不定
C．内部无回声
D．后方回声衰减
E．侧缘声影不定