题目内容

What should the nurses look at apart from the patient's pain?

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Why is the pain the first thing that the nurses will address?

Is it enough for the patient to be looked after only by the nurses?

矩形花键的定心方式一般采用（）。

A. 大径定心
B. 键宽定心
C. 小径定心
D. 都可以

矩形花键6×28f7×34a11×7d10 GB/T1144-2001小径尺寸及公差带为（）、键宽尺寸为（）。

A. 28f7、7d10
B. 34a11、6
C. 34a11、7d10
D. 28f7、6