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{{B}}Animals
in the Desert{{/B}} Some desert animals can survive the very strong summer heat and dryness because they have very unusual characters. The camel, for example, can{{U}} (51) {{/U}}an increase in the temperature of its body and its blood of 9℃. In addition, it can drink an enormous amount of water at one time, then store sufficient water in its red blood cells and other parts of its body to supply its needs for two weeks or more. The kangaroo rat (长鼻袋鼠) ,on the other hand,{{U}} (52) {{/U}}all the water it needs from water that it produces during respiration (呼吸). However, most animals need to{{U}} (53) {{/U}}a fairly constant body temperature, and will die if it rises more than 5℃. {{U}} (54) {{/U}},they need to find some way to avoi A. hill B. surface C. top D. skin [判断题]转子流量计的刻度与被测流体的密度无关
A.正确 B.错误 [单选题]间接接触触电包括( )和接触电压触电两种类型。
A.直接接触触电 B.接触电压触电 C.跨步电压触电 [单选题]钢筋混凝土框架梁，一般情况下自支座内侧（ ）mm处开始设置第一道箍筋。
A.50 B.100 C.150 D.200 [单选题]客车编入货物列车回送时，客车编挂辆数不得超过20辆，应挂于列车（）。
A.前部或中部 B.前部 C.中前部 D.中部或后部 [单选题]在化油器式汽油发动机的化油器上,装有阻风门。常用于( )、升温运转以及混合气过稀动力不足时。
A.发动机正常运转 B.停熄发动机 C.冷启动发动机 D.汽车起步 [单选题]购房提取时房屋产权证应是( )之内。
A.一年 B.两年 C.三年 D.四年 [单选题]车钩闭锁位时，钩舌与钩腕间距离大于（ ）mm时可导致车钩分离。
A.110 B.125 C.135 D.155 我来回答: 提交
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