当眼睛受到（）的刺激时，应用2%的苏打水洗眼。
A、氢氧化钠
B、碳酸钠
C、二氧化硫
D、氨
参考答案：C
---_____?
---I don’t feel very well today. I’ve got a pain here.
A．Can I take your temperature
B．What’s wrong with you
C．Do you have a cough
D．How long have you been like this
BGP－200型发泡机电动机功率是（）kw。
A、2×2
B、2×3
C、2×4
D、2×5
