2岁男孩，股骨中段斜行骨折，短缩移位3cm，其治疗最好采用A．手法复位，小夹板固定

The nurse is instructing an unlicensed assistant on how to collect a urine specimen from an indwelling catheter. Which of the following statements indicates that the assistant understands the instructions

A．"I will empty the catheter drainage bag, have the client drink some water, and an hour later collect the urine that drains into the bag. "

B．"I will get a sterile syringe and remove urine from the catheter through the collection port to place in the specimen container. "

C．"I should collect urine from the catheter drainage bag at the end of the shift and place it in the specimen container. "

D．"I will disconnect the drainage tube from the catheter and let urine run from the catheter into the specimen container. "

大面积的水泥混凝土垫层应设置伸缩缝，但水泥混凝土面层铺设不得留施工缝。（）

为了减少钻头摆动，钻孔前应先（）。

决定教育性质的根本因素是()

A．政治制度

B．生产关系

C．生产力

D．生活方式

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