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【单选题】
Read the following arguments carefully. Choose the mode of argumentation from A,B, and C for each argument. A.descriptive B.relational C.evaluative 3) Dogs are better companions to their owners than cats. A good companion pet should be attached to its owner emotionally and help him stay healthy. First of all, dogs and their owners share a bond that is as intense as the connection between children and their mothers. Cats are independent and aloof, whereas dogs are accustomed to moving in packs and instinctively seek attachments. Dogs'behavior resembles babies’, who are confident and comfortable in the presence of their mothers but become agitated when separated. That’s why canine owners cite the unconditional love of dogs as a chief advantage over cats. Secondly, a dog owner can slip a leash on his pet and head outdoors for some exercise. The master and his animal might play Frisbee, jog through a park or take a long stroll through the neighborhood.You can't take a cat with you on a run!K9 Magazine further endorses the theory that dog owners are healthier by referencing a Belfast study that concluded that dog owners experience lower cholesterol and blood pressure and recover more quickly from heart attacks.
A.
descriptive
B.
relational
C.
evaluative
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【单选题】苯环上的一个氢被烷基取代,其毒性将发生如下何种改变
A.
苯对造血功能主要是抑制作用,而甲苯为麻醉作业
B.
苯主要从呼吸道,对呼吸道系统有毒性作用,而甲苯没有
C.
苯中毒产生过量的儿茶酚胺刺激心肌细胞发生心室颤动,而甲苯没有
D.
苯为致癌物,甲苯为工业毒物
【单选题】"驷马难追"的"驷马"到底是几匹马?
A.
八匹马一辆车
B.
四匹马四辆车
C.
四匹马一辆车
【判断题】商铺信息,指商铺的基本信息和经营信息。
A.
正确
B.
错误
【简答题】表面活性剂分子的结构有什么特点?试从结构上说明它降低溶液表面张力的原因。
【单选题】苯环上的一个氢被烷基取代,其毒作用将发生如下改变
A.
苯对造血功能主要是抑制作用,而甲苯为麻醉作用
B.
苯主要从呼吸道排泄,对呼吸系统有毒性作用,而甲苯没有
C.
苯中毒产生过量的儿茶酚胺刺激心肌细胞发生心室颤动,而甲苯没有
D.
甲苯的肝脏中氧化,对肝有损害作用,而甲苯没有
E.
苯为致癌物,甲苯为工业毒物
【判断题】进口发动机常用的防冻液分为绿色和红色两种,这两种防冻液绝对不能混合使用,若混合使用的话,颜色会发黑,这种失效的冷却液会导致发动机水道腐蚀,严重的导致缸体烂穿。
A.
正确
B.
错误
【单选题】数据文件和日志文件的最小值为( )。
A.
1MB
B.
3MB
C.
无限制
D.
与Model数据库的对应文件大小
【单选题】键盘只能用来输入,键盘的工作方式是
A.
单工
B.
半双工
C.
全双工
D.
自协商
【单选题】心内注射部位应选在( )
A.
胸骨右缘第3肋间
B.
胸骨左缘第3肋间
C.
胸骨右缘第4肋间
D.
胸骨左缘第4肋间
E.
胸骨右缘第5肋间
【简答题】制冷压缩机的功用是吸收.低压致冷剂蒸汽,并将其压缩到所需压力 后排放到 。
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