全球变暖(3.0) A: warming B: global warming C: world warming D: worldwide warm

global warming is already

Richard I was called ( ). A: the cat heart B: the girl heart C: the Lion Heart D: the man heart

Global warming happens when ________.

Our English teacher asked us to ______ the text ______. A: remember; by heart B: learn; in heart C: recite; by heart D: learn; by heart

Praise gladdens_______. A: the heart of the giver B: the heart of the receiver C: the heart of the investorthe heart of the investor D: the hearts of both the giver and the receiver

Praise gladdens A: the heart of the giver B: the heart of the receiver C: the heart of the giver and the receiver

Global Warming Global warming A mix of ______________ and irregular climate change Cause of global warming ________________: carbon dioxide, water vapor, and methane ________________: using forests as fuel, for building, furniture, etc. The use of __________________ on crops _____________________ Effects of global warming Destruction of important _______________________ systems Loss and endangement of many ___________________________ _______________________________________ Solutions to global warming To reduce gases put into atmosphere Be more _______________, use wind and solar power etc. To in crease greenhouse gases taken out of the atmosphere Planting trees Making changes to the _____________________________

The reason of global warming is the has been changed.

Which of the following is not true about second heart sounds: A: It occurs at the beginning of ventricular diastole B: Auscultation is strongest and clearest at the apex of the heart C: The tone of the heart is higher and clearer than that of the first heart D: The duration is shorter than the first heart note