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【单选题】
对于病因未明的疾病,描述性研究的主要任务是A.
因果推断
B.
寻找病因线索，提出病因假设
C.
验证病因
D.
确定病因
E.
否定病因
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举一反三
【单选题】对三视图中的主视图而言，下列说法错误的是（）
A.
尺寸上反映了物体的长度和高度
B.
方位上反映了物体的左右和前后
C.
通常反映了物体的主要特征
D.
主视图是物体的正面投影
【单选题】56 对三视图中的俯视图而言,下列说法错误的是________。
A.
尺寸上反映了物体的长度和宽度
B.
方位上反映了物体的左右和前后
C.
反映了物体的主要特征
D.
俯视图是物体的水平投影
【简答题】When he realized the police had seen him, theman______the exit as quickly as possible. A. madeup B. made for C. madeout D. made off
【单选题】57 对三视图中的左视图而言,下列说法错误的是________。
A.
尺寸上反映了物体的高度和宽度
B.
方位上反映了物体的上下和前后
C.
反映了物体的主要特征
D.
左视图是侧面投影
【单选题】George had stolen some money, but the police had caught him and he had been putin prison. Now his trial was about to begin, and he felt sure that he would be found guilty and sent to prison for a long...
A.
The jury sent Jim to prison for a long time.
B.
The jury visited Jim in prison.
C.
There were eleven people on the jury.
D.
There were twelve people on the jury.
【单选题】Benjamin was sweating bullets by the time the police had finished questioning him. The underlined part means ______.
A.
impatient
B.
very frightened
C.
speechless
D.
very tired
【单选题】对三视图中的俯视图而言，下列说法错误的是（）
A.
尺寸上反映了物体的长度和宽度
B.
方位上反映了物体的左右和前后
C.
反映了物体的主要特征
D.
俯视图是物体的水平投影
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