职工因工作遭受事故伤害或者患职业病需要暂停工作接受工伤医疗的期间为停工留薪期，停工留

As the nurse helps the client prepare for discharge, the client says, "You know, I’ve been in lots of hospitals and I know when I’m sick enough to be there. I’m not that sick now. You don’t need to worry about me. " Which of the following would be the most therapeutic response by the nurse

A. "We’re concerned about you. How can we help you before you leave"
B. "We could have helped you more if you had told us more. "
C. "Is there any information you need before you leave the hospital"
D. "Okay, you know best. "

All of us found ________difficult to work out the maths problem. [ ]

A. what    

B. that    

C. which    

D. it

单吸式离心泵叶轮工作时，叶轮两侧不对称，（）不一样。

A.离心力 

B.向心力 

C.压力 

D.阻力

高炉实际操作中通常以（）来表示煤气利用率。