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问题 单项选择题

激活荨麻疹非变态反应途径的物质是（）

A.青霉素

B.真菌

C.蛇毒

D.血清制品

E.花粉

答案

参考答案：C

解析：蛇毒属于动物毒素，可直接刺激肥大细胞释放组胺，导致荨麻疹，为非变态反应途径。

填空题

完型填空（每空1分，共5分）The bill of lading by itself is not a contract of carriage as it is signed only by the carrier. However, it provides（ ① ）. It serves as a receipt for goods delivered to the carrier. Besides, the bill of lading serves as a document of title enabling the goods to be transferred from the shipper to the consignee or any other party by endorsement.The sea waybill is the replacement of the traditional （ ② ）. The waybill is a non-negotiable document and made out to a （ ③ ） who is allowed, upon production of proper identification, to claim the goods without presenting the waybill.The （ ④ ） is issued by the carrier to enable the consignee to take delivery of the cargo from the vessel.The mate’s receipt is the receipt issued by the chief mate in the acknowledgement of the goods received on board which is subsequently exchanged for the（ ⑤ ）.

A．contract of carriage

B．evidence of contract of carriage

C．contract itself

D． A＆C

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单项选择题

短路阻抗测试试验判断分析，每次检测后，均应分析同一参数的三个单相值的互差（横比）和同一参数值与原始数据和上一次测试数据的相比之差（纵比），判断差值是否超过了注意值，并分析（）的变化趋势。

A.横比值

B.纵、横比值

C.纵比值

D.近三次
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