《劳动法》明确了国家确定职业分类,制定职业技能标准,实行()制度。
A.持证上岗
B.职业资格证书
C.等级工
参考答案:B
温水擦浴的温度是( )
A.30~32℃
B.32~34℃
C.34~36℃
D.36~38℃
I don’t know __________, but I guess he may be a doctor.
A. how he is
B. what he is
C. what does he do