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【单选题】
患者,男性,20岁,因患大叶性肺炎需青霉素治疗。皮试5min后病人出现胸闷、气急、皮肤瘙痒、面色苍白、脉搏细弱、血压下降、烦躁不安。请问病人发生了何种反应A.
青霉素毒性反应
B.
血清病型反应
C.
呼吸道过敏反应
D.
过敏性休克
E.
皮肤组织过敏反应
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举一反三
【简答题】对水工建筑物进行监测与维护，必须本着 [填空(1)] 的原则。A. 以防为主，防重于修，修重于抢
【单选题】Advertisement is mainly paid for by ________
A.
the customer
B.
the producer
C.
increased sales
D.
reduced prices
【判断题】The supply curve indicates the minimum quantity that a producer would be willing to supply at alternative prices.
A.
正确
B.
错误
【简答题】倒垂线常用作变形监测的基准线，可用于水工建筑物的( ) A应变监测 B水平位移监测 C垂直位移监测 D裂缝监测 E挠度监测
【单选题】以下关于细菌内毒素的说法正确的是
A.
大多数革兰阳性菌都有内毒素
B.
内毒素耐热，加热到100°1小时才能被破坏
C.
内毒素可用甲醛脱毒制成类毒素
D.
细菌在生活状态时不释放内毒素
E.
内毒素可降低血管通透性
【单选题】The major difference between the Consumer Price Index and the Producer Price Index is that:
A.
the PPI is based on retail prices and CPI is based on wholesale prices.
B.
the PPI measures the cost of living of self-employed workers and the CPI measures the cost of living of salaried workers.
C.
the PPI generally registers a higher rate of inflation than the CPI.
D.
the PPI is based on the cost of a basket typically purchased by producers, while the CPI is based on the cost of a basket typically purchased by consumers.
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