由下列两种反应物构成的反应不属于复分解反应的是（）
A.碱+盐
B.酸+盐
C.A.盐+B.盐
D.碱性氧化物+酸
参考答案：D
信用保证保险是由保险人为信用关系中的（）提供信用担保的一类保险业务。
A.权利人
B.代理人
C.义务人
D.中介人
—What do you think of the lecture of Li Yang's Crazy English?
—I think it's _______, but someone thinks it's much too _______. [ ]
A. wonderful enough; bored
B. enough wonderful; boring
C. wonderful enough; boring
D. enough wonderful; bored
