“先天下之忧而忧，后天下之乐而乐”是下列哪种情感 ( )
A．道德感
B．美感
C．理智感
D．热爱感
参考答案：A
The company always great importance to the quality of their products. That’s why there is always a steady increase in sales year by year.
A．puts
B．attaches
C．makes
D．plays
为什么只有DNA适合作为遗传物质？
