阅读短文，然后从短文括号中所给词的适当形式填空。

Climbing the highest mountains in the world is not an  小题1:  (easily) job．You have to fight bad weather，illness and fear．But Jordan Romero，a thirteen-year-old boy from America，will climb小题2:(Asia) highest mountain，Mount Qomolangma．He will set out this month．小题3: (He)parents and helpers will climb with him．He plans to take  小题4: (second)months for his climb．“I’m ready．But if I don’t reach the top 小题5: (successful)，I’ll try next time，”he said. Jordan has already climbed the highest mountains of six other continents(洲)．If he 小题6:  (get)to the top this time，he will become the youngest person to climb the world’s highest mountain．

一男性患者，56岁，胸骨后压榨性疼痛半天口含硝酸甘油不缓解而就诊，心电图显示Ⅱ、Ⅲ、aVF出现异常Q波，ST段弓背抬高，查体：BP150／90mmHg，心率92／min。

心肌梗死在心电图上与其他疾病的鉴别要具备（）

A.Q波

B.ST段改变

C.T波改变

D.QRS时限延长

E.异常Q波、抬高的ST段、倒置的T波，并具有一定的演变规律