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下列属于公安战术问题的是（）
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根据喜温程度，米兰属于（）植物。
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行业是指从事国民经济中（）的经营单位和个体等构成的组织结构体系。
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日本人の生活習慣も時代とともに変わっていく。ほんの少し前までは，春や秋になると，畳を乾燥させるために家の中から畳を外に出す光景があちこちで見られたものであり，どんなに忙しい生活をしている人でもこれだけは続けてきた。畳は暮らしの中に季節感を作り出していたのである。
が，最近では畳がだんだん見られなくなってきている。畳の上に座る，畳の上で家族みんなで食卓を囲む，畳の上に布団を敷いて寝る。客が来れば，その畳の上に手をついてあいさつをする。それが当たり前だった生活はつい昨日のようなことである。畳は日常生活とともにあったのである。
畳という言葉は，古い時代の文字や記録にも出ている。昔から日本人の生活の中にあったものと考えてよいのであろうが，そのころは床に敷く布や毛布のようなものを「たたみ」と呼んでいたらしい。（ア），使わないときは畳んでしまっていた。つまり，「畳む」ものだから畳という言葉が生まれたのだろうと思われる。
また，昔の詩の中に，「旅に出た人の使っていた畳は動かしても汚してもならない」とある。なぜなら人は旅に出ているときでも故郷に自分の心を残しており，その心は畳の上にも残っている。その畳を留守の間に大事にしないと，旅で危険な目にあったり（遇险），病気になったりする，と信じられていたからだ。昔は畳は自分一人だけで使うものだったのである。
やがて時代は変わり，畳はだんだん現在のような形と大きさのものになっていく。1人の人が寝られるぐらいの大きさが畳の標準となり，それに合わせて部屋の大きさも決められるようになったのである。最近ではすっかり目立たなくなった畳も長い歴史を持ち，日本の生活文化と深いつながり（关系）を持っているのである。文中の「これ」を指す意味はどれか（）。
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已婚妇女，32岁，停经58天，阴道流血7天，尿hCG阳性。诊断为异位妊娠，最具特征性的B超检查为（）
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简述选择的基本方法及特点。
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依照本法规定需要申请的集会、游行、示威，其负责人必须在举行日期的5日前向主管机关递交（）
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临床表现为上臂血压增高，而下肢血压不高或降低的是（）。
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Overcoming Difficulties ① Life is full of difficulties and obstacles, from birth to death. At times, Life seems like a hurdle race. We are sure of encountering hurdles, but almost always we are taken by surprise. It is necessary to accept that life in general is full of difficulties and adversities. This recognition is the first step. When faced with problems, we often feel, "I am the only one having such problems" Or, we tend to exaggerate our problems and regard them as most complex, most painful，and as an extreme case. But if we look around us, we find people in much worse conditions. As St. Augustine said, "I cried for boots, till I saw a man who had no legs." ② When faced with difficulties, we either complain or seek to dodge them. We behave like as ostrich in the desert. It is said that when there is a storm in the desert, the ostrich buries his head in the sand-hoping that the storm will go away if he ignores it-and finally gets buried under a heap of sand and dies. Some of us choose to pretend that the problems do not exist. We fail to realize that confronting and solving the problem-no painful the process-makes us grow. ③ Accept the woes of birth. It has many implied meanings. First, it means "accepting," i.e., being able to say that it is "my" problem and it is up to me to solve it. Many times we find ourselves putting the blame on others-parents, society or the circumstances of life. Nothing happens by chance, but all is the result of our past actions. There are times when what is needed is patience. We seek to come out of an unpleasant situation quickly. We must understand that if the cause had been operating for a long time, the effect also would last long-as even when the gas has been turned off, the burner remains hot for a long time. Similarly, we expect quick results; having put in the effort, we must be willing to wait. Patient acceptance of what is due to us makes us makes us take a step further in our development. ④ Once we have learnt to deal with a difficulty, the next time we encounter it, it ceases to be a difficulty. But, more often than not the cause of the problem is internal, i.e., within us, and often, it calls for a change. Often the difficulty is solved when we are willing to change—our way of thinking, our feelings, our likes and dislikes—and ready to adapt or adjust ourselves to a problematic situation or a person in life. We must realize that realize that change is inevitable, and always be mentally prepared for it. ⑤ Not all life's problems are such that they need to be dealt with all at once. Sometimes it is possible to take a step and wait for a long time. For instance, if the tap is leaking then we need to call a plumber as soon as we can. But having called him and having found that he can come only the following morning, we should wait patiently for the next 24 hours. In this period, people can get very anxious and go on talking about it to others. There are many such problems in life. Sometimes problems do need taking a step and（）
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有关像素和体素不准确的概念是()