Passage 4
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Sports and games make our bodies strong, prevent us from getting too fat, and keep us healthy. But there are not their only use. They give us valuable practice in making eyes, brain and muscles work together. In tennis, our eyes see the ball coming, judge its speed and direction and pass this information on to the brain. The brain then has to decide what to do, and to send its orders to the muscles of the arms, legs, and so on, so that the ball is met and hit back where it ought to go. All this must happen with very great speed, and only those who have had a lot of practice at tennis can carry out this complicated chain of events successfully. For those who work with their brains most of the day, the practice of such skills is especially useful. Sports and games are also very useful for character-training. In their lessons at A. use, first, our eyes, then the brain and finally the muscles B. make our eyes, brain and muscles work almost at the same time C. use mainly the arms and legs to hit the ball D. use mainly the muscles so that the ball is met and hit back [单项选择]有关T细胞表位描述错误的是（）
A. 由TCR识别 B. 无需MHC分子的递呈 C. 多为线性表位 D. 可存在于抗原分子的任意部位 E. 化学性质多为肽类分子 [单项选择]睑板腺囊肿属于（）
A. 化脓性炎症 B. 慢性炎症 C. 慢性非特异性炎症 D. 黏液性炎症 E. 慢性肉芽肿性炎症 [单项选择]下列哪项不是知觉的基本特性
A. 整体性 B. 理解性 C. 选择性 D. 恒常性 E. 准确性 [判断题]对于食管腐蚀伤的病人应于伤后1周行食管钡剂检查以了解有无食管狭窄。（）
[判断题]西汉时发明的卤水点豆腐,卤水就是一种食品添加剂;还有发面时用的碱面也是食品添加剂。( )
A.正确 B.错误 [单选题]某企业为氨纶纤维制造单位，该单位使用危险化学品从事生产并且使用量达到规定数量，应当依照《危险化学品安全管理条例》的规定取得()。
A.危险化学品经营许可证 B.危险化学品安全生产许可证 C.危险化学品安全使用许可证 [单选题] Mesh 组网在以下哪个协议中定义的?
A. 802.11a B. 802.11g C. 802.11e D. 802.11s [单选题]客车编入货物列车中相对车轮轮缘外侧至缺损部位距离（）
A.≥1508 B.≥1506 C.≥1505 D.≥1503 [判断题]可在两处或多处操作的起重机，可多处同时进行操作。
A.正确 B.错误 [填空题]110kV及以上的电力网中均采用（ ）直接接地，最容易发生的故障是（ ）短路。
我来回答: 提交
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