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问题 单项选择题 A2型题

男孩，2岁。低热15天，伴盗汗、消瘦、轻咳10天。胸部X线透视呈“双极影”，诊断为原发综合征。不符合活动性肺结核的指标是（）。

A．结核菌素试验硬结直径≥15mm 

B．有发热及其他结核中毒症状 

C．胃液找到抗酸杆菌 

D．胸部X线片示渗出性改变 

E．血沉增快，而无其他原因解释

答案

参考答案：C

单项选择题 共用题干题

Many of the activities performed during the preliminary investigation are still being conducted in(1)，but in much greater depth than before.During this phase,the analyst must become fully aware of the(2)and must develop enough knowledge about the(3)and the existing systems to enable an effective solution to be proposed and implementeD. Besidesthe(4)for process and data of current system,the deliverable from this phase also includes the(5)for the proposed system.

空白（2）为（）

A.main symptom

B.root problem

C.final blueprint

D.data specification
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单项选择题

氧化传感器顶端呈白色表明氧化传感器（）。

A.铅中毒

B.硅污染

C.碳污染
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