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问题 单项选择题

玻璃是以（）、纯碱、石灰石等无机氧化物为主要原料，与某些辅助性原料经高温熔融，成型后经过冷却而成的固体。

A.碎玻璃

B.石英砂

C.氧化钠

D.氧化硅

答案

参考答案：B

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 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)________.
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单项选择题

(30一33题共用备选答案)

急性白血病

A．游走性四肢大关节肿痛，极少出现畸形
B．脊柱关节强直性病变，呈弓状畸形c．对称性小关节受累，晚期多有畸形
D．大小关节均可受累，很少畸形及关节脱位
E．全身关节酸痛伴明显胸骨下端压痛
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