“This is your last chance,” warned Mrs Gillfeather. I broke out in a sweat and my hands started to shake. We both wanted to get to sleep, but before we could, I had to put a cannula(针管) in her arm.

    Before becoming a doctor I'd only a vague idea what a cannula was, coming from an hour spent with a plastic arm while at medical school. Once I became a doctor, however, I couldn't seem to get away from them.

    For those of you who are lucky enough to have never come into contact with one, they're tiny little tubes that are put into a vein(静脉)so that fluid or medicines can do directly into the blood. That's the theory. Unfortunately, the problem is that for them to work, you have to get them into the vein in the first place. This tends to be trickier than you'd imagine—and it's a job that tends to fall on the junior doctors.

    Mrs Gillfeather's veins were particularly elusive that evening. I'd been jabbing the needle in for at least 20 minutes.

    “Isn't there someone else who could do this?” she asked, for the fourth time. “Someone who knows what they're doing, perhaps,” she said under her breath, just loud enough for me to hear.

    Finally, I got it in. Mrs. Gillfeather and I both breathed a sigh of relief

    Just as I was about to leave the ward, the nurse called me over, “Max, there's another cannula to do on bed 16.”

补写出下列名篇名句中的空缺部分。

①《登高》中，道出郁积杜甫心中的自身之苦和国运之恨，无限悲凉难以排遣的句子是“____，____”。

②庄子《逍遥游》中两句“____，____”，说宋荣子不因外界的赞誉和非难而动摇心志。

③柳宗元在《小石潭记》中寓情于景，用“____，____”两句暗示出了小石潭不可久居的特点。

在反应X+2Y  R+2M中，已知R和M的相对分子质量之比为22:9.当1.6gX和Y完全反应后，生成4.4gR，则在反应中Y与M的质量比为          （ ）