选择题:《煤矿安全规程》规定,粉尘种类为煤尘时,当游离二氧化硅含量低于10%时,呼吸性粉尘时间加权平均容许浓度为()微克/立方米。

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《煤矿安全规程》规定,粉尘种类为煤尘时,当游离二氧化硅含量低于10%时,呼吸性粉尘时间加权平均容许浓度为()微克/立方米。

A.2.5

B.3.5

C.4.5

D.5

参考答案:

粉尘中游离二氧化硅含量越高则对人体的危害越小。

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部分粉尘可以引起消化系统疾病。

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The nurse is reading a health care provider’s (HCP’s) progress notes in the client’s record and reads that the HCP has documented “insensible fluid loss of approximately 800 mL daily.” The nurse makes a notation that insensible fluid loss occurs through w

The nurse is reading a health care provider’s (HCP’s) progress notes in the client’s record and reads that the HCP has documented “insensible fluid loss of approximately 800 mL daily.” The nurse makes a notation that insensible fluid loss occurs through w

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Potassium chloride intravenously is prescribed for a client with hypokalemia.Which actions should the nurse take to plan for preparation and administration of the potassium? Select all that apply.

Potassium chloride intravenously is prescribed for a client with hypokalemia.Which actions should the nurse take to plan for preparation and administration of the potassium? Select all that apply.这是一个关于外科护理学的相关问题,下面我们来看答案是什么,Potassium chloride intravenous

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投篮时靠()最后集中到手腕、手指将球投出。

投篮时靠()最后集中到手腕、手指将球投出。这是一个关于力量 身体 大学生的智慧篮球的相关问题,下面我们来看答案是什么,投篮时靠()最后集中到手腕、手指将球投出。A.屈膝蹬地力量B.腰腹伸展力量C.手臂力量D.身体各部的综合力量正确答案:身体各部的综合力量

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