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【单选题】
创建一个2x4的数组,下列代码中错误的是( )。A.
np.random.random([2,4])
B.
np.mat('1 2;3 4;5 6; 7 8 ')
C.
np.eye(2,4)
D.
np.arange(0,8).reshape(2,4)
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【单选题】早期肝癌(小肝癌)的诊断标准是
A.
直径在1cm以下，单个瘤结节
B.
直径在5cm以下，不超过2个瘤结节
C.
直径在3cm以下，单个瘤结节
D.
直径在3cm以下，不超过2个瘤结节
【简答题】( )和 ( ) 是衡量电能质量的两个基本参数。
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【单选题】早期肝癌(小肝癌)的诊断标准是:
A.
直径在1cm以下，单个瘤结节
B.
直径在1cm以下，不超过2个瘤结节
C.
直径在3cm以下，单个瘤结节
D.
直径在3cm以下，不超过2个瘤结节
E.
无临床症状的肝癌
【简答题】听对话，选择正确答案。 1. Is Peter free this evening? [ ] A. Yes, he is. B. No, he isn't. C. We don't know. 2. What does the man usually do on Sundays? [ ] A. Plays computer s. B. Plays basketball. C...
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