酒炙可使药物中生物碱成盐而增加有效成分溶出。
参考答案:错
_______his experience, he has done a good job, so you should give him something as a(n)________. [ ]
A. Considered; award
B. Given; reward
C. Regard; gift
D. Considering; price
如图所示为钓鱼竿钓鱼的示意图,O为支点,F1表示手对钓鱼竿的作用力,请完成下列问题:
(1)在图中画出鱼线对钓鱼竿拉力F2的力臂l2;
(2)钓鱼竿属于________杠杆(选填“省力”、“费力”或“等臂”)。