当地价指数的基期不固定时，若要利用其进行期日修正，应先将其指数调整到（）后，再进行修

Wang Ling, a middle school girl, felt angry with her parents after getting a boy’s phone call. “A classmate called me to discuss homework. We talked for just a few minutes before my parents got mad,” said the girl. “They asked whether I liked the boy. I’m sad Ididn’t, but they wouldn’t believe me.”

Wang’s trouble is not strange at all because puppy love becomes a big headache for both parents and schools. They worry that puppy love will be bad for their study. Her school makes it a rule not to allow any talk or any physical contact between one boy and one girl alone.

Many students say they understand why parents and teachers are so nervous about puppy love. But some think they are going too far. “We have our own thoughts and we know what to do with it.” said Wang Ling.

Another girl, Jiang Ting, liked making friends with boys. “Boys and girls can learn from each other,” she said. “My mother asks me to study hard. However, she never stops me from making friends with boys.” Once Jiang Ting told her mother she might fall in love with a boy. Her mother let Jiang make her own decision. Soon Jiang found that she didn’t like him any more because the boy was not as good as what she had thought before. And she did worse and worse in her subjects because she spent much on it. At last she understood the worry from school and most parents about puppy love.

小题1:What’s the right meaning of the underlined word “physical contact” in the second paragraph?

A．物理联系

B．相互接触

C．身体接触

D．独自相处小题2:What can we learn from the article?

A．Wang Ling told her mother she might fall in love with a boy.

B．Jiang’s mother doesn’t care about her at all.

C．Puppy love will be bad for student’s study.

D．Puppy love becomes a problem for all students.小题3:From the last paragraph, we know ____________.

A．Jiang doesn’t like making friends with students.

B．Jiang can’t make a decision for herself

C．Jiang worked hard and she did not bad in her subjects.

D．Jiang understood her parents’worry at last

下列用电器或设备中，没有电磁铁的是（   ）

A．日光灯

B．电铃

C．电磁起重机

D．磁悬浮列车

建筑工程一切险物质损失的保险项目包括（）。

A.建筑工程

B.安装工程项目

C.建筑用机器、装置及设备

D.场地清理费

E.工地内现成的建筑物

以下关于水痘的病后免疫的叙述哪项是正确的（）

A.病后免疫不强，易反复感染

B.无病后免疫，病毒易于潜伏感染

C.病后免疫持久，但仍可发生带状疱疹

D.有多种血清型，因此病后免疫并无多大保护作用

E.病后免疫持久，病毒完全清除

工业毒性危险化学品对人体的危害中，可引起皮肤或呼吸系统过敏，出现皮疹或水疱等症状的化学品有( )。

A．甲苯

B．聚氨酯

C．环氧树脂

D．二氧化硫