—We're going for a picnic next Sunday, and I'd like you to join us.

—____________！I have to see my grandmother. She has been

ill for two weeks.

A．What a pity

B．Good luck

C．That’s all right

D．Go ahead

某年初冬，鄱阳湖中水量极少，大面积的河滩、草洲显露，成为天然的牧牛场(见下图)。据此完成下列问题。

小题1:从水循环环节分析，枯水期时鄱阳湖湖面萎缩的主要原因是

A．地表径流汇入减少

B．湖水下渗增加

C．地下径流流出增加

D．湖面蒸发增大小题2:下列有利于鄱阳湖湿地保护的措施是

A．退耕还牧

B．围湖造田

C．退田还湖

D．禁止捕鱼