皮皮学,免费搜题
登录
搜题
【简答题】
The report says lack of water in the future may result in several problems. It may increase health problems. Lack of water often means drinking waters not safe. Mr. Engelman says there are problems all over the world because of diseases, such as cholera, which are carried in water. Lack of water may also result in more international conflict. Countries may have to compete for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning. The Population Action International study gives several solutions to the water problem. One way, it says, is to find ways to use water for more than one purpose. Another way is to teach people to be careful not to waste water. A third way is to use less water of agriculture.
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【简答题】马克思主义产生的经济根源是资本主义社会生产力和( )的矛盾运动。
【判断题】中职生要树立先就业、后择业的就业观念。
A.
正确
B.
错误
【单选题】我国金融营销的发展从2001年至今,由于( )效应的影响,进入到了营销定位及国际化阶段。
A.
鲇鱼
B.
创新
C.
信息化
D.
木桶
【单选题】有关C#中派生类,说法正确的是()。
A.
派生类的成员由两部分构成,一部分是从基类继承得到的,另一部分是自己定义的新成员。
B.
派生类的成员访问属性需使用与父类不同的访问修饰符进行修饰。
C.
派生类可以继承基类的实例构造函数、析构函数和静态构造函数在内的所有成员。
D.
派生类从基类继承的所有成员都可以在派生类中进行访问。
【单选题】几何学意义上,线移动的轨迹。其中错误的是()
A.
直线平行移动可形成梯形的面
B.
直线旋转移动可形成圆形的面
C.
斜线平行移动可形成菱形的面
D.
直线一端移动可形成扇形的面
【单选题】直线一端移动可形成( )的面
A.
方形
B.
圆形
C.
菱形
D.
扇形
【判断题】为了吸引更多的投资者到平台投资,网络股权众筹平台都会想尽一切办法降低平台的经营风险,而最有效的方式是吸引更多的优质项目进驻平台,从而向线下发展。
A.
正确
B.
错误
【判断题】输出回路的作用是将微机的处理结果放大,生产能控制执行元件工作的控制信号。
A.
正确
B.
错误
【单选题】如果系统经过一系列变化回到初始状态,则系统的
A.
Q = 0, W = 0, Δ U = 0 Δ H = 0
B.
Q ≠ 0, W ≠ 0, Δ U = 0 Δ H = Q
C.
Q = -W, Δ U = Q + W, Δ H = 0
D.
Q ≠ W, Δ U = Q + W, Δ H = 0
【单选题】直线一端移动可形成()的面
A.
方形
B.
圆形
C.
扇形
D.
三角形
相关题目: