问题
单项选择题
在所有的大众传媒中，影响最大的是（）
A.报纸
B.杂志
C.广播
D.电视
答案
参考答案：D
搜题请搜索小程序“爱下问搜题”
在所有的大众传媒中，影响最大的是（）
A.报纸
B.杂志
C.广播
D.电视
参考答案：D
| 辨析填空。 | ||
2. Do you know the pretty woman _____ sunglasses _____ in white over there? 3. I washed and _____ and sat by the fire waiting for him. 4. It's cold outside. You'd better _____ the overcoat before leaving.
6. In no time he wrapped a cloth tightly around his arm to stop the poison _____ to his heart. 7. They signed an agreement that they should _____ the trade between the two countries. 8. Australia _____ for about 4000 km from east to west and for about 3700 km from north to south. |
N2O4(g)；△H＜0。现将一定量NO2和N2O4的混合气体通入容积为1L的恒温密闭容器中，反应物和生成物浓度随时间的变化关系如图所示。下列有关说法中错误的是