读图,回答下列问题: (1)三亚的经纬度位置是________,________

题型:连线题

问题:

读图,回答下列问题:

(1)三亚的经纬度位置是________,________。

(2)俄罗斯地跨亚欧两大洲,其境内的亚、欧洲界线是①________山脉,________(国家)领土跨南北

    半球,东临________洋。

(3)目前,南非已是中国在非洲的最大贸易伙伴,图中扼守两国海上往来航线的交通咽喉②是________

    海峡,此时南非处于________(季节)。

(4)会议期间,在与会的四个国家人员中,________(国家)国人员最易感受到三亚的气温与本国有明

    显不同,判断并说明原因_______________________________。

考点:俄罗斯海南省非洲
题型:连线题

若x1,x2是一元二次方程x2+4x+3=0的两个根,则x1•x2的值是(  )

A.4

B.3

C.-4

D.-3

题型:连线题

We live in a digital world now, and a student's technology needs have changed. For the early years, say when you are in primary school, you can get by with no technology at all. Even if you have a computer, it's a good idea to get children familiar with libraries. At this age, trips to the library are like family outings.

As you get closer to middle school, a computer with Internet access becomes more of a necessity. Teachers will often give assignments that require a student to use the Internet for research. After a computer, technology choices for students become more difficult to make – especially when it comes to cell-phones. Kids will beg their parents for a cell-phone, especially in middle school. For many parents, it's a safety issue: They want to know that their kids can reach them quickly if necessary. For teachers, cell phones can be used to record lessons when students are absent. But many teachers dislike cell-phones. Some kids send messages or have talks in the class. Sending messages also raises the problem of cheating on exams. More and more schools are now forbidding the use of cell-phones.

Many kids see iPods as necessary things to have. iPods are great for music, but do they do anything good for your children’s education? Maybe they do. That’s the opinion of Doug Johnson, an educator for 30 years. Johnson says that educators should accept all new forms of technology in the classroom, including iPods. “Some do more with their cell- phones than we can do with our laptops,” he jokes. “I don’t think we should be afraid. The truth is that it’s easier to change the way we teach than to change the technology habits of an entire generation.”

1. According to author, primary school children should___.

A. use the computer and the Internet regularly      B. ask their parents to buy them cell-phones

C. buy iPods to listen to music                  D. go to libraries to read more books

2. Why do parents agree to buy their children cell-phones?

A. They want their children to be cool.

B. They think cell-phones be helpful to their study.

C. They want to keep in touch with their children.

D. They want their children to keep up to date.

3. The following are all reasons why many teachers dislike cell-phones EXCEPT ____.

A. cell-phones can be used to cheat on exams   

B. schoolchildren will send messages during class

C. cell-phones can be used to record lessons    

D. schoolchildren might talk on them during class

4. What does the underlined word “that” refers to?

A. iPods can be used to listen to music.      

B. iPods can be helpful for children’s education.

C. iPods can be used to play games.            

D. iPods are necessary for children’s lives.

5. We can infer from what Doug Johnson said that _____.

A. cell-phones are not useful to students        

B. teachers should let students use cell-phones

C. it’s better for teachers to change their teaching methods

D. schoolchildren should follow the trends(潮流) of fashion

题型:连线题

后牙修复体颊舌面凸度过小会引起

A.牙髓炎
B.牙龈萎缩
C.根尖周炎
D.牙龈炎
E.牙槽脓肿

题型:连线题

肛裂主要的临床特点是

A.无痛性便血
B.便后滴血
C.便秘伴疼痛和出血
D.肛周有脓性分泌物

题型:连线题

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