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问题 单项选择题 A2型题

患儿男，1岁。因发热1天入院。查体：T39℃，体重减轻15%，面红而光滑，唇红不干，咽充血，轻度肋外翻，心肺（-），腹壁皮下脂肪0.7cm，弹性好。此患儿除上呼吸道感染外，伴有的疾病是（）

A.中度脱水

B.活动性佝偻病

C.营养不良

D.酸中毒

E.呆小病

答案

参考答案：C

解析：患儿体重减轻，腹部皮下脂肪变薄（正常应该在0.8cm左右），提示患儿可能存在营养不良。同时患儿轻度肋外翻，提示可能存在维生素D缺乏性佝偻病，所以患儿除了呼吸道感染最有可能伴有的疾病是营养不良，故本题选C。

完形填空

阅读下面短文，掌握其大意，然后从左面的五个选项中，选择恰当的句子还原到文章中，使短文意思通顺、结构完整。

“We’re reading the first part of a book that doesn’t end…”【小题1】 But I have always liked them because they always remind us that the future can be anything we want to make it．We can make it anything that we can imagine．

【小题2】 If we plant good seeds(种子)，we have good products．If our seeds aren’t good，we get useless products．小题1:．

I want the future to be better than the past．【小题4】 We all should care about the future， because that’s where we will spend the rest of our lives．

The past is gone．【小题5】 The future is before us．It is changeable．Everything we do will affect it．Each day brings with it something new in our homes and in our business，but only if we realize them．We’re just at the beginning of everything we study．

A．We are all like farmers．

B．I don’t know who wrote these words．

C．There is nothing we can do to change it．

D．If we plant nothing at a11．we get nothing at all_E．I don’t want it filled with mistakes that happened many times before．
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不定项选择

如图所示，长方体物块C置于水平地面上，物块A、B用不可伸长的轻质细绳通过滑轮连接（不计滑轮与 绳之间的摩擦），A物块与C物块光滑接触，整个系统中的A、B、C三物块在水平恒定推力F作用下从静止开始以相同的加速度一起向左运动。下列说法正确的是

[ ]

A.B物块与C物块之间的接触面可能是光滑的

B.若推力f增大，则绳子对B物块的拉力必定增大

C.若推力F增大，则定滑轮所受压力必定增大

D.若推力F增大，则C物块对A物块的弹力必定增大

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