问题
单项选择题 A1/A2型题
1型糖尿病的发生主要是由于（）
A.老年人肾小球排糖少
B.吃糖过多，短期内无法排出
C.胰岛素分泌绝对不足
D.靶细胞对胰岛素敏感性降低
E.老年人肾小管重吸收糖多
答案
参考答案：C
解析：1型糖尿病的发生主要是具有遗传易感性的人群在病毒感染、化学物质等因素作用下引起胰岛B细胞破坏，导致胰岛素分泌不足。
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1型糖尿病的发生主要是由于（）
A.老年人肾小球排糖少
B.吃糖过多，短期内无法排出
C.胰岛素分泌绝对不足
D.靶细胞对胰岛素敏感性降低
E.老年人肾小管重吸收糖多
参考答案：C
解析：1型糖尿病的发生主要是具有遗传易感性的人群在病毒感染、化学物质等因素作用下引起胰岛B细胞破坏，导致胰岛素分泌不足。
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| Tom is an 1____________ boy. He's twelve 2____________. He's two years 3____________ than his brother, Jim. Tom is 150 cm and Jim is 160 cm. Jim is 50 kilos and Tom is 60 kilos. Tom wants 4___________ lose some weight (减肥), so he tries not to eat too much food. He also 5____________ more exercise than before. Every morning he 6____________ earlier than Jim and he goes jogging for thirty minutes. He usually goes skating after school. After dinner, Tom often 7____________, and Jim likes 8____________ at home. Now Tom is much stronger than Jim. Jim thinks he needs more 9____________ now. He and Tom will do exercise 10____________.
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