问题
单项选择题
掌浅弓（）
A.位于掌腱膜的浅面
B.位于掌腱膜的深面
C.由桡动脉末端与尺动脉掌浅支构成
D.发出掌心动脉
E.位于掌深弓的近侧约2cm处
答案
参考答案：B
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掌浅弓（）
A.位于掌腱膜的浅面
B.位于掌腱膜的深面
C.由桡动脉末端与尺动脉掌浅支构成
D.发出掌心动脉
E.位于掌深弓的近侧约2cm处
参考答案：B
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| Jerry is the kind of man you love to hate.He is always in a(n)__1__mood and always has something __2__to say.In his opinion, the bottom line is your choice__3__you live a life. One morning, he did something you are never__4__to do in the restaurant business: he left the back door open and was__5__up at gunpoint by three armed robbers.While trying to open the__6__, with his hand shaking from__7__, he input the wrong code.The robbers beat him and even__8__him.Luckily, Jerry was found__9__quickly after the robbers had fled and he was rushed to the local first aid center. After 18 hours of operation and weeks of good care, he was out of hospital with fragments (碎片) of the bullets still in his body. Jerry told me what happened after he was sent to hospital.He said the doctors were 10 .They kept telling him he was going to be fine and 11 him into the emergency room.But when he saw the 12 on the faces of the doctors and nurses, he got really 13 .In their eyes, he 14 , "He's dying." He knew he needed to take 15 .There was a big,burly nurse shouting questions at him.She asked if he was allergic (过敏的) to anything, and the doctors and nurses stopped working as they waited for his reply.Jerry 16 for a while and then he decided to live.He took a deep breath and said, "Yes. 17 !" Over their laughter, Jerry told them to operate on him 18 he wouldn't die. Jerry lived, thanks to the skill of his doctors, but also because of his amazing 19 .I learnt from him that every day we have the choice to live fully. Attitude, 20 , is everything. | ||||
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2NH3(g)； △H=-92.4kJ·mol-1。 
2NH3(g)的平衡常数K= ________。（保留小数一位）K值越大，表明反应达到平衡时_________（填标号）。
2NH3(g) + O2(g)。△H = a kJ·mol-1 进一步研究NH3生成量与温度的关系，常压下达到平衡时测得部分实验数据如下表 
2NH3(g) ΔH= －92 .4kJ·mol-1 
O2(g) ΔH=_____________kJ·mol-1