正常情况下,不能通过肾小球滤过膜的物质是().
A.血细胞
B.肌酸
C.尿酸
D.肌酐
E.尿素
参考答案:A
解析:因肾小球滤过膜的屏障作用,血液中的血细胞无法通过。
根据短文内容和首字母提示,把所缺单词填写在短文后面相应的横线上,使句意完整。
It's very important for us to keep h___1_____in our everyday life. Here is some a____2____for you. First, you should have healthy diet. Different food helps us in different w_____3____. You should eat more fruit and vegetables instead o____4____hamburgers, Beijing roast duck and so on. If you choose the right food, you can have healthy eating habits. Second, doing exercise is good f___5_____your health. For example, climbing mountains, riding bikes or swimming. Third, you should s_____6____at least eight hours a day and you shouldn't work or study too hard. Finally, remember that s ____7____is bad for your health, so don't smoke, you will become m____8__healthier.
小题1:_______ 小题2:________ 小题3:________小题4:________ 小题5:________小题6:_______小题7:_________小题8:________
《安全生产法》规定,生产经营单位采用新工艺、新技术、( )或使用新设备,必须了解、掌握其安全技术特征,采取有效的安全防护措施等。
A.新仪器
B.新方法
C.新标准
D.新材料