气孔减少了铸件的有效面积，造成局部（），降低了铸件的力学性能。

根据句意及首字母提示完成单词。

1. After dinner, Lisa usually helps her mother do the d       .

2. Linda likes to do housework.  She often helps her mom to s        the floor.

3. Mrs Wang h       watching TV, but she likes reading.

4. Brad didn't take part in the sports m        because of his sore back.

下列哪一类疾病的预后可用躯体感觉诱发电位来判断（）。

A.小脑梗死

B.脊髓损伤

C.多发性肌炎

D.视神经炎

E.肌肉萎缩性侧索硬化

Kofi Annan says helping survivors of last week’’s earthquake and (1)________in the Indian Ocean is (2)________. The United Nations secretary-general says countries that have offered aid must (3)________and provide it. The offers add up to around (4)________dollars. United Nations officials say (5) ________of that is needed during the next six months.The concern about offers of international aid is (6)________. For example, the earthquake in Bam, Iran, in (7)________of 2003 killed more than (8) ________people. Countries and groups offered hundreds of millions of dollars (9) ________. The United Nations says it has (10)________only about (11)________dollars in aid received so far. Governments and organizations that offered help (12) ________that, however.On (13)________Mr. Annan met with world leaders in Jakarta, Indonesia to discuss aid for (14)________. The leaders discussed and (15)________the idea of (16)________owed by affected nations. But the leaders did not say they would do so. Some said that (17)________to survivors would be more helpful.Representatives of (18)________countries and international organizations attended the meeting in Jakarta. Officials say they will cooperate to develop (19)________ for the Indian Ocean and the (20)________.

摘要的内容和要素一般包括（）、研究方法、（）和研究结论。

Activities Programme
TIME AND PLACE
January 24～30
Jan. 24～30, 8:00 a. m.～5:00 p. m.
Jan. 25～29, 12:00 p. m.～9:00 p. m.
Classroom area
1) English Taster Lesson
2) Food health-keeping method
3) E-Photography and Techno-Music
4) Education Software Demonstration
Internet training area
SINA and Capital On-Line will provide Internet training for the public. The focus (焦点) will be on browsing the Internet; how to find useful information on the web and how to design an elementary Web page.
Foyer activity area
5) The students from Beijing TV University for the children will provide a calligraphy course (hand writing demonstration)
6) Children Activities
Lectures
21st Century, the educational weekly of China Daily, will invite experts from English-speaking countries to hold lectures from 18:30 to 20:30 on Jan. 27 to 29 and in the daytime on Jan. 30.

What does the word "browsing" in the passage probably mean
It means ______.