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问题 单项选择题

对金属镍的皮肤过敏反应

A．由嗜碱性粒细胞的浸润

B．可用P-K试验诊断

C．可用组胺拮抗药进行有效治疗

D．是由IgE介导的

E．是由对镍和蛋白复合物致敏的T细胞引起

答案

参考答案：E

单项选择题

Man: Have you run up against any problems in getting your passport renewedWoman: I haven't started the plan yet.Question: What do know from the conversation

A．The woman doesn't think it a problem to get her passport renewed.

B．The woman has difficulty renewing her passport.

C．The woman hasn't renewed her passport yet.

D．The woman's passport is still valid.
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单项选择题

工程咨询项目( )程度比较低，民营项目咨询业务很少，许多咨询业务靠各种非竞争手段取得。

A．工业化

B．市场化

C．现代化

D．科学化
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