亚洲众多的长河呈放射状流向周边的海洋，其原因是亚洲的地势[ ]
A．西部低、东部高
B．中部高、四周低
C．中部低、四周高
D．西部高、东部低
答案：B
It was generally believed that the show was not as successful as expected, but ________,
I think it was a great success. [ ]
A. personally
B. directly
C. publicly
D. secretly
以下产能营养素单位质量产生能量最高的是（）。
A、酒精
B、脂肪
C、碳水化合物
D、蛋白质
