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【单选题】
脊柱后凸多发生于( )A.
骶段脊柱
B.
颈段脊柱
C.
腰骶段脊柱
D.
腰段脊柱
E.
胸段脊柱
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举一反三
【单选题】已知5个正数a 1 ，a 2 ，a 3 ，a 4 ，a 5 的平均数是a，且a 1 ＞a 2 ＞a 3 ＞a 4 ＞a 5 ，则数据：a 1 ，a 2 ，a 3 ，0，a 4 ，a 5 的平均数和中位数是（ ）
A.
a，a 3
B.
a， a 3 + a 4 2
C.
5 6 a， a 2 + a 4 2
D.
5 6 a ， a 3 + a 4 2
【简答题】已知（1﹣x） 5 =a 0 +a 1 x+a 2 x 2 +a 3 x 3 +a 4 x 4 +a 5 x 5 ，则（a 0 +a 2 +a 4 ）（a 1 +a 3 +a 5 ）的值等于（ ）
【简答题】A)Because they are minority English speakers. B)Because they don’t speak second language. C)Because they English is not better than anyone else’s. D)Because they lose control of English resources.
【简答题】People think you are boastful and rather aggressive. They don’t trust you and they don’t want to have too much to do with you.
【单选题】※患者女,26岁。风湿性心脏病患者,前来咨询是否可以怀孕。护士应告诉她做决定的依据主要是心功能分级。那么下述哪一种情况可怀孕
A.
心功能Ⅱ级
B.
心功能Ⅲ级
C.
心功能Ⅳ级
D.
既往有心力衰竭史
E.
风湿热活动者
【简答题】For some students, the reason is not that they don’t put in enough time, but rather that they don’t have good study habits.
【单选题】Translate the sentence into Chinese: One reason introverts shy away from social activities is that they don’t feel comfortable as they don’t know what to do, especially if something unexpected is to o...
A.
Finished
B.
Unfinished
【单选题】Most parents would be surprised to learn this. They certainly don’t plan to talk more with one child than with another. They don’t even realize that this is happening. So why do they do it? Interestin...
A.
Parents who talk more to their baby girls are responding to the fact that girls are a little more developed at birth.
B.
Most parents don’t know that they talk more with their girls and would be surprised to learn this.
C.
Males are a little less developed than females are at birth.
D.
Baby girls make noises and have eye contact a little more than baby boys do.
E.
Baby boys don’t remain alert as long as baby girls do.
【单选题】已知5个正数a 1 ，a 2 ，a 3 ，a 4 ，a 5 的平均数是a，且a 1 ＞a 2 ＞a 3 ＞a 4 ＞a 5 ，则数据：a 1 ，a 2 ，a 3 ，0，a 4 ，a 5 的平均数和中位数是 [ ]
A.
a，a 3
B.
a，
C.
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