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【简答题】
在纯电 感电路中,电流与电压的周期___(相同;不同),角频率___(相同;不同),电压的相位比电流的相位______(超前90°;滞后90°)。
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举一反三
【简答题】随机引物法和切口平移法是如何对探针进行标记的?
【单选题】糖尿病微血管的病变特点是（）
A.
毛细血管的动脉粥样硬化管腔狭窄
B.
毛细血管基底膜增厚，PAS染色阳性
C.
毛细血管微血栓形成，血流速慢
D.
毛细血管钙化，通透性降低
E.
毛细血管的内皮细胞受损
【简答题】Write an answer to one of the questions 2—4 in this part. Write 200—250 words on the separate answer paper provided. 1. Question 2 You have learnt of a new position open to candidates from within your...
【单选题】Directions: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A),B) ,C) and D). You should decide o...
A.
The author means that lots of people read few books.
B.
The author thinks that readers have only absorbed part of knowledge in books.
C.
The author holds that few people have a proper idea about what content some kind of books should include.
D.
The author considers that readers can scarcely understand most of the books.
【单选题】CK作为心脏标志物,下列描述哪项不正确
A.
快速、经济、有效，是当今应用最广泛的心肌损伤标志物
B.
其浓度和急性心肌梗死面积有一定相关，可大致判断梗死范围
C.
诊断特异性强，对心肌微小损伤敏感
D.
能用于诊断心肌再梗死
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