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【单选题】
变异型心绞痛心电图表现可出现:
A.
PR 间期延长
B.
ST 段暂短性抬高和 T 波高耸
C.
P 波倒置
D.
Q 波 ≥ 同导联 R 波的 1/4
E.
ST 段下移和或 T 波倒置
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参考答案:
举一反三
【单选题】细菌对青霉素产生耐药的主要原因是
A.
产生水解酶
B.
产生钝化酶
C.
改变代谢途径
D.
改变细胞膜通透性
E.
改变核糖体结构
【多选题】胃肠激素主要有 ( )
A.
胃泌素
B.
胆囊收缩素
C.
促胰液素
D.
胰岛素
E.
脑啡肽
【简答题】牵引变电所要按规定配备消防设施和急救药箱。当电气设备发生火灾时,要立即将该设备的 ____________ 切断,然后按规定采取有效措施灭火。
【多选题】当电气设备发生火灾时,要注意哪些,以下表述正确的有( )
A.
要立即将该设备的电源切断
B.
切断电源后按规定采取有效措施灭火
C.
牵引变电所要按规定配备消防设施和急救药箱。
D.
立即向供电调度汇报,经许可后将该设备的电源切断
【简答题】His bright clothes were not______a funeral. A.fit B.appropriate of C.appropriate for D.suit
【简答题】A.She wears clothes similar to those of his wife’s. B.She wears clothes that were the same as his wife's. C.She wears clothes which were different form. those of his wife's. D.She wears clothes Which ...
【单选题】His clothes were _______ to the occasion.
A.
potential
B.
average
C.
considerable
D.
appropriate
【单选题】Why was Brian wearing so many clothes for his travel?
A.
Because they were the uniforms for air couriers
B.
Because that made him easier to be recognized
C.
Because his backpack had no room for his clothes
D.
Because he did not have any luggage with him
【单选题】牵引变电所要按规定配备消防设施和急救药箱。当电气设备发生火灾时,要立即将该设备的( )切断,然后按规定采取有效措施灭火。
A.
电源
B.
水源
C.
气源
D.
油源
【单选题】青霉素产生耐药的主要原因是
A.
细菌产生钝化酶
B.
细菌改变作用靶点
C.
细菌产生青霉素酶
D.
细菌改变代谢途径
E.
增强主动外排系统的活性
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