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单项选择题

1岁男婴，母乳少，长期以米汤、稀饭喂养，不规律添加辅食，食欲差，精神差。诊断为：营养不良。最先出现的症状是

A.皮肤干燥
B.肌张力低下，肌肉松弛
C.身高低于正常
D.皮下脂肪减少
E.体重不增或减轻
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相关考题

单项选择题
某女性，停经50天，考虑是早期妊娠可能性较大，对于妊娠最早的症状是
A.停经
B.阴道充血变软，呈紫蓝色
C.子宫增大
D.B超探及胎心管搏动
E.自觉胎动
未知题型
What do we know about the sea? Most of us have seen it. We know that it looks very pretty when the sun is lighting on it. We also know that it can be less pretty when the weather is terriblE.What other things do we know about it?
The first thing is that the sea is very big. Look at a map of the world and you'll find there is less land than seA.The sea covers 3/4 of the worlD.The sea is very deep in some places. Some parts of the sea are very shallow. At a place near Japan, the sea is nearly 11 kilometres deep! If the highest mountain in the world were put into the sea at the place, there would be two kilometres of water above it.
Which of the following is true according to the passage?
A.The sea always looks pretty.
B.The sea always looks terriblE.
C.The sea looks neither pretty nor terrible when it is finE.
D.The sea doesn't look pretty all the timE.
单项选择题
家工厂食堂，工人就餐1小时后，陆续出现唇、指甲以及全身皮肤青紫等症状。根据中毒症状，中毒的原因最可能是
A.亚硝酸盐中毒
B.病毒感染
C.氰化物中毒
D.有机磷中毒
E.一氧化碳中毒
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