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病历摘要：维生素D缺乏性佝偻病患儿女孩，5个月，出生体重3kg，现在体重7kg，冬季出生，足月顺产，单纯牛奶喂养。近半月来烦躁、多汗、夜间哭闹、睡眠不好。查体：发育正常，营养中等，前囟2cm大小，头颅有枕秃，有颅骨软化，心肺未见异常，四肢活动正常，神经系统检查未见异常。

3～6个月佝偻病患儿多见的骨骼系统改变是哪些？（）

A.方颅

B.出牙延迟

C.胸廓畸形

D.颅骨软化

E.手镯、脚镯征

F.下肢畸形

G.囟门迟闭

H.肌张力增强

答案

参考答案：A, D

单项选择题 A1/A2型题

患者女，65岁。反复腹痛，腹泻3个月余，X线图像如下，最有可能的诊断是（）

A.肠结核

B.结肠癌

C.结肠息肉

D.肠梗阻

E.节段性肠炎
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填空题


On December 25, 2000, many people across North America received a rare Christmas treat when the moon passed in front of the sun resulting in a partial solar eclipse.
Solar eclipses occur when the moon (47) between the earth and the sun, and the moon’s shadow covers part of the earth; and a total solar eclipse takes place when the moon’s shadow blocks out the sun (48) . What made this particular solar eclipse unique was that this event has occurred on December twenty-filth only 30 times (49) the past 5000 years, the last time in 1954.
But people must be exceptionally (50) when attempting to view a solar eclipse. Without taking precautionary (51) , one can permanently damage the retina of the eye; however, there are several safe methods of (52) this heavenly marvel.
First, you can view a solar eclipse by using eclipse safety glasses for filtering out the sun’s (53) rays. They should be used when any part of the sun is visible.
Sunglasses can block out some of the sun’s ultraviolet rays, but the results can be very deceptive. The eye’s natural (54) to this darkened state when wearing sunglasses is to make the pupil larger, which allows in more light and can (55) the damage to your eye.
You can watch an eclipse by projecting the sun’s (56) on a piece of paper either by using a telescope, or easier yet, by creating a pinhole in a piece of paper and viewing the result on another piece of paper, thus called a pinhole projector.
[A] lively [I] during
[B] passes [J] intensify
[C] among [K] measures
[D] careful [L] reaction
[E] target [M] investigating
[F] entirely[N] harmful
[G] image [O] poses
[H] witnessing
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