类风湿性髋关节炎与髋关节结核大多没有（） A.Thomas征阳性 B.X线摄片见骨质

心在液为（）

A．泪

B．汗

C．涎

D．涕

E．唾

一个数除以它的倒数等于1．______．（判断对错）

[1]A new study has found evidence of aggressive behaVior in children who drink four or more servings of soft drinks every day．

[2]The mothers of 3，000 five-year-olds took part in the study．They were asked to keep a record of how many servings of soft drinks their children drank over a two-month period and keep records of how they behaved．The researchers found that 43 percent of the boys and girls drank at least one daily serving of soda．Four percent of the youngsters had four or more sodas to drink every day．

[3]Children who drank the most soda were more than two times likely to show signs of aggression．“For the children who consumed four or more  soft drinks per day，we see an association between aggressive behaviors, attention problems and withdrawn behaviors．”Shakira Suglia says．The aggressive behaviors included destroying possessions belonging to others，taking part in fights and physically attacking people.

[4]Shakira says the researchers identified the link after they considered the factors like the child’s age and sex．They also considered     ，such as whether the boys and girls were eating sweets or given fruit drinks on a normal day．In addition，the researchers examined parenting styles and other social conditions that might be taking place in the home.

[5]It is not quite clear why young children who drink a lot of soda have behavior pmblems．However，a substance oftell found in soft drinks is caffeine，which helps to make people feel energetic．Doctor Suglia suggests that caffeine could be causing the children to be more aggressive.

[6]The research is part of a larger study called the Fragile Families and Child Welibeing Study．It follows 5，000 poor mothers and their children in 20 American cities.

小题1:What is the main idea of the text?(no more than 10 words)

小题2:What does the underlined word“they’’in Paragraph 2 probably refer to?

小题3:List three aggressive behaviors according to the text．(no more than 10 words)

①                                                                         

②                                                                         

③                                                                         

小题4:Fill in the blank in Paragraph 4 with proper words．(no more than 3 words)

小题5:Complete the following statement with one word from Paragraph 5．

People will often become      when they have some coffee，in which caffeine is the major chemical．

下列化学实验操作或事故处理方法不正确的是（　　）

A．碱沾到皮肤上时，应立即用大量水冲洗，再涂上硼酸溶液

B．浓硫酸沾到皮肤上时，可立即用湿抹布冲洗，然后涂上3%～5%的NaHCO₃溶液

C．酒精灯不慎碰倒起火时，可用湿抹布或沙子盖灭水扑灭，不能用水泼灭

D．配制硫酸溶液时，可先在量筒中加入一定体积的水，再在搅拌条件下慢慢加入浓硫酸

以下关于保险合同的说法中正确的有（）

A、投保单是被保险人向保险公司申请订立保险合同的书面要约。

B、保险单是保险公司承保后签发的，记载保险金额、保险费数额等合同具体信息的单证。

C、投保人填写投保单后应亲笔签名确认，必要时受益人也要亲笔签名确认，如以身故为保险金给付条件的合同。

D、保险条款详细记载了保险合同当事人的权利和义务。