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[单选题]在心室等容收缩期时(??)
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在价值形式发展中,没有发生本质变化的两种价值形式是
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2.
Cloze Test (10 points, 1 point for each item)下列短文中有十个空白，每个空白有四个选项。根据上下文要求选出最佳答案，并在答题纸上将相应的字母涂黑。Getting plenty of exercise is very important. I enjoy 11 very much. Last Summer, I went to the beach every day. I plan to go there this summer too, 12 I may not be able to. I have a new job. Sometimes I have to work until 13 at night. Though I now work more hours than I used to, I do receive a larger salary. I didn't receive much pay on my old job. I like 14 new job, but had I known that it would take up so much of my free time, I 15 it. I prefer swimming to spending money.I have heared that riding a bike is good exercise. Maybe I will be able to16 enough money to buy a bike. My neighbour, Mrs. Wilson, has a bicycle that I could borrow from her, but I would rather own my own bike. If I used 17 , I would worry about damaging it. Since I 18 more money now, I think that I can afford to buy my own. Getting a bike is really a good idea, because while I am riding to and from work, I will be getting exercise at the same time. It's easier to get to the beach by bike too. I might be able to go swimming every day 19 . This new job is great: I'm very 20 . This will be a summer full of exercise.
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2、作为一个图片编辑应具备的基本素质有
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下列有关美国独立战争的史实，先后顺序是（ ）
①来克星顿枪声②波士顿倾茶事件③《独立宣言》发表④第一届大陆会议召开
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28.下列系统中，适合采用逐步切换方式完成旧系统到新系统切换的是
