科学发展观所贯穿的以人为本，实质就是以国家的根本利益为本。( )
参考答案：错
解析： 科学发展观的实质是实现经济社会更好更快的发展。
—I expected him to be nervous before his speech, but he was as cool as a cucumber.
—He _______ it carefully.
A．could have prepared
B．shouldn’t have prepared
C．must have prepared
D．can’t have prepared
色彩因波长不同具有进退感，下面具有前进感的色相有（）.
A.红
B.兰
C.橙
D.紫
E.绿
