---John , how do you like your new job?

       “黄海海战天如墨，炮震烟迷船掀侧，致远鼓揖冲重围，万火丛中呼杀贼。”下列选项中与此诗相关的历史事件是：[ ]

A．鸦片战争

B．第二次鸦片战争

C．甲午中日战争

D．八国联军侵华战争

某高级脂肪酸 0.2mol完全燃烧，生成二氧化碳和水共6.8mol；同量的与64g溴完全加成．求该高级脂肪酸分子中m和n的值．

The problem is my weight. I’m just 1.57 meters high, but51. ______
my weight is 75 kilos. Many students often make a fun 52. ______
of me. Some boys were unfriendly for me—they call 53. ______
me "meat ball". That makes me to feel unhappy. 54. ______
Although I’m a bit too fat, yet I feel very well. I 55. ______
enjoy my meal. I love eating meat very much. And I like 56. ______
sweet food, though. I often have sugar with tea, milk. In57. ______
the past two months I had put on 5 kilos. So I’m becoming58. ______
more and more worried this problem, but I don’t 59. ______
know to lose weight quickly. Could you help me, dear doctor. 60. ______

下列哪项不是肾上腺素能α受体活化产生的效应

A．小肠平滑肌舒张
B．血管平滑肌收缩
C．有孕子宫平滑肌收缩
D．虹膜辐射状肌收缩
E．支气管平滑肌舒张

在道路运输价格理论中，由“市场竞争决定论”派生出来的定价理论包括边际成本理论、均衡价格理论和( )。

A．次优定价理论
B．效用价值理论
C．从价理论
D．劳动价值理论