【名词&注释】
上下文(context)、生态型(ecotype)、共济失调(ataxia)
[单选题]下列关于步态的描述，错误的是( )
A. 蹒跚步态走路时身体左右摇摆似鸭状步态
B. 醉酒步态移步时，下肢内收过度，两腿交叉如剪刀状
C. 共济失调步态行走时将足高抬，骤然落卞，双目向下注视，两脚间距较宽，闭目时摇晃不稳
D. 慌张步态起步后小步急速行走，身体前倾的慌张步态
E. 跨阈步态患足下垂，行走时必须高抬患侧下肢
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举一反三：
[单选题]Mathew Brady______.
A. was very lifelike
B. was famous for his unusual pictures
C. was quite strong
D. took many pictures of moving people
[单选题]She had hardly got home________ her husband went to work?
A. when
B. after
C. that
D. since
[单选题]水稻和陆稻属于下列哪种生态型( )
A. 气候
B. 土壤
C. 生物
D. 相同的
[单选题]The word“confront”(1ine 2，para 4)most probably means“________”．
A. bring face to face
B. find out
C. understand
D. accept
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