问题
单项选择题
原发性甲状旁腺功能亢进症的诊断依据是（）。
A.血清PTH增高的同时伴有高钙血症
B.血清PTH增高的同时伴有低钙血症
C.血清PTH降低的同时伴有高钙血症
D.血清PTH降低的同时伴有低钙血症
E.血清PTH正常而血钙增高
答案
参考答案：A
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原发性甲状旁腺功能亢进症的诊断依据是（）。
A.血清PTH增高的同时伴有高钙血症
B.血清PTH增高的同时伴有低钙血症
C.血清PTH降低的同时伴有高钙血症
D.血清PTH降低的同时伴有低钙血症
E.血清PTH正常而血钙增高
参考答案：A
The boy’s father became seriously ill on the way home from a father-son shopping. He couldn’t speak and could小题1: move, but he tried hard to stop the car safely. At that point, Dancy used his father’s phone to call his mother for help. The 5-year-old boy tried his best to give her useful information and he was able to tell where they were. Just as he had learned in the kindergarten, Dancy read the letters he saw on a nearby store sign: “F, U, R, N, I, T, U, R, E.” But that wasn’t enough for his mother to find them. Then he added that they were near a bridge. Finally, his mother 小题2:he was talking about a store called Furniture 22 on New Jersey’s Route 22. The mother called 911 and the father was saved 小题3: . “He just thought his dad needed help,” Dancy’s mother told the reporter. She also pointed out that her husband was a hero, too. “It is 小题4: for him to get off the highway and get himself and his child to safety even when he was so sick,” she said. Shine, head of the kindergarten, felt proud of his pupil. “Dancy’s spelling skills helped him seize the moment,” he said, “And that’s the real value(价值)of education.” |
化学实验的“目的一操作一现象一结论”是实验过程中几个相关的环节．下列关于实验过程的描述正确的是（ ）
| 实验过程 组别 | 实验目的 | 所加试剂 （或操作） | 实验现象 | 实验结论 |
| A | 检验稀盐酸和氢氧化钠溶液是否恰好完全反应 | 在反应后的溶液中滴加无色酚酞试液 | 无明显现象 | 恰好完全反应 |
| B | 除去KCl中的少量K2CO3 | 稀盐酸 | 有气泡产生 | K2CO3已被除完 |
| C | 区分硬水和蒸馏水 | 肥皂水 | 产生大量泡沫 | 该液体为蒸馏水 |
| D | 用排空气法收集氧气时检验集气瓶中氧气是否集满 | 将带火星的木条伸人瓶内 | 木条复燃 | 瓶内氧气已集满 |
A．A
B．B
C．C
D．D