Climate change may cause the following disasters EXCEPT______.
A．floods will erode highland soil
B．coastal cities will be threatened
C．low-lying nations will be affected by higher sea level
D．wetland and rain forest ecosystems could be in great danger

未分类题What does the last paragraph imply?A．Human beings are vulnerable groups in the world.B．Human beings have no ability to reduce emissions.C．Human beings are preparing for the coming risks.D．Pollutions may be the major cause of climate change.

单项选择题前列腺癌的特点正确的是()

未分类题What is the author s attitude toward genetically modified crops?

单项选择题我国第一部本草专著是：()

未分类题In 2050, one of the biggest challenges of mankind is______.A．to provide food for at least 9 billion peopleB．to develop more cultivable landC．to produce treble food on roughly the same area of landD．to prevent droughts and floods