早产儿胎龄28周，娩出过程顺利，生后24小时出现频繁的呼吸暂停。最可能的原因是（）
A.低体温
B.红细胞增多症
C.肺炎
D.颅内出血
E.肺透明膜病
参考答案：D
解析：一胎龄28周的早产儿，由于室管膜下生发基质未退化完，易出现脑室内出血而出现前囟饱满和呼吸暂停，肺炎主要以呼吸增快为主，肺透明膜病主要以生后12小时内出现进行性呼吸困难为主，低体温、红细胞增多症多不出现前囟饱满。
| 完形填空。 | |||
| Once a king was walking around a pool with his ministers (大臣). 1 , he came up with 2 . He asked, "How many basketfuls of 3 are there in the pool?" The ministers 4 . to give an answer. The king was angry, "You 5 answer my question in three days!" Three days passed, but 6 of the ministers had the answer. Just then, a child appeared who said that he knew it. The king told the ministers to lead (领) the child to 7 . To their surprise, the child 8 and said with a smile, "It is 9 . No need to go to the pool. " This made the king 10 . "All right. Let us know 11 it is." The child said, "If you know the 12 of the basket, the answer is clearly 13 . If it is as big as the pool, there is one basketful of water; half as big, two basketfuls..." "Stop! 14 . You have got the answer. They were thinking of things 15 a wrong way. " | |||
| ( )1. A. Luckily ( )2. A. an answer ( )3. A. water plants ( )4. A. tried ( )5. A. have to ( )6. A. all ( )7. A. himself ( )8. A. refused ( )9. A. nice ( )10. A. tired ( )11. A. who ( )12. A. size ( )13. A. right ( )14. A. That's right ( )15. A. on | B. However B. an idea B. flowers B. failed B. may B. one B. the palace B. agreed B. easy B. bored B. what B. colour B. known B. That's all right B. in | C. Suddenly C. a person C. fish C. began C. could C. none C. the pool C. answered C. important C. pleased C. how C. weight C. wrong C. That's a deal C. by | D. Happily D. a smile D. water D. wanted D. would D. each D. the garden D. thought D. hard D. frightened D. where D. height D. interesting D. That's nothing D. with |