搜题请搜索小程序“爱下问搜题”
问题 填空题

某同学用游标卡尺测一个金属圆筒的内径，如图所示，则其内径为_______________ cm。

答案

2.538 cm

题目分析：游标卡尺的读数为：

点评：在使用游标卡尺时，需要先弄清楚分度值，然后再读取主尺读数，最后读取游标尺读数，游标尺上不需要估读

填空题

Kofi Annan says helping survivors of last week’ s earthquake and (1) . in the Indian Ocean is (2) . The United Nations secretary-general says countnes that have offered aid must (3) and provide it. The offers add up to around (4) dollars. Unitd 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) .
查看答案
单项选择题

急性脓胸并发支气管胸膜瘘最主要的治疗方法是

A．消炎治疗

B．胸腔穿刺

C．开放引流

D．闭式引流

E．以上都不是
查看答案