—Many people are suffering from the earthquake.
—I see. Food and clothes should be sent to them .
A:on purpose
B:at present
C:right away
D:ever since
我国国有经济涉及的领域主要有( )
读某河相对流量过程曲线示意图(该河以雨水补给为主),回答下题。该河流域内的气候类型不可能是( )