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【简答题】
触电的常见急救措施有哪些？
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皮皮学刷刷变学霸
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【简答题】阅读理解。 This is a picture of Lily's classroom. It's not a big classroom. But the walls are white and the desks and chairs are new. There is a map of China, a clock and some pictures on the wall. You can...
【单选题】下列关于水平对称振子方向性函数（方向图）的说法正确的是【】。
A.
无论地面为何种形态，沿地面方向的辐射始终为零。
B.
架设高度一定时，指定仰角下的水平归一化方向图与自由空间对称振子的方向图相同。
C.
架设高度要根据通信距离进行选择。
D.
架设高度越低，波瓣数越多。
【简答题】某经济中,消费函数为C=600+0.8Y, (注:本题不考虑税收和转移支付),投资函数为I=400-50r,政府购买为200;货币需求函数为L=0.5Y+250-125r,名义货币供给量为1250,价格水平为1。计算下列结果: IS曲线方程为:Y=( )— ( )r LM曲线方程为:Y=( )+ ( )r 产品市场和货币市场同时均衡时,均衡收入为( ...
【简答题】根据短文内容和首字母提示，在空白处填入适当的单词。 Tom's bedroom is very small. There is a nice guitar in his room n 1 the window. There is a desk near the window, too. It's big and nice. A clock is o 2 the desk. N 3 to the c...
【简答题】我国地势呈阶梯状分布。结合所学，分析回答问题。 小题1:受地形影响，我国境内的大河，大多注入 。 A．大西洋 B．太平洋 C．印度洋 D．北冰洋 小题2:关于我国地势特征及其影响的描述正确的是 A．西高东低，东部多平原 B．东高西低，夏季多雨 C．西高东低，夏季高温 D．东高西低，海洋水汽利于深入内地
【单选题】The U.S. Air Force pays a Turkish citizen $30,000 to work on a U.S. base in Turkey. As a result,
A.
U.S. government purchases increase by $30,000; U.S. net exports decrease by $30,000; and U.S. GDP is unaffected.
B.
U.S. government purchases increase by $30,000; U.S. net exports are unaffected; and U.S. GDP increases by $30,000
C.
U.S. government purchases, net exports, and GDP are unaffected.
D.
U.S. government purchases are unaffected; U.S. net exports decrease by $30,000; and U.S. GDP decreases by $30,000.
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