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【多选题】
协助判断气管插管位置的方法包括A.
将简易人工呼吸器前端与气管插管相连
B.
挤压简易人工呼吸器球囊送气
C.
听诊胸部和上腹部
D.
观察胸部起伏
E.
ETCO2监测
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【单选题】在电路参数和级数相同的条件下，多级双调谐回路放大器与多级单调谐回路放大器的矩形系数相比较 。
A.
双调谐放大器的矩形系数减小的较快
B.
双调谐放大器的矩形系数减小的较慢
C.
减小速度相同
D.
无法比较
【简答题】简述凯恩斯流动偏好利率理论?
【单选题】The Mexican government takes half measures to solve the pollution problem because______
A.
Mexican economy depends very much on cars and factories
B.
it is not wise enough to come up with effective measures
C.
Mexicans are able to adapt themselves to the current emergency
D.
Mexicans enjoy playing dangerous games with their health
【单选题】The effective rate of protection measures
A.
the "true" ad valor e m value of a tariff.
B.
the quota equivalent value of a tariff.
C.
the efficiency with which the tariff is collected at the customhouse.
D.
the protection given by the tariff to domestic value added.
【单选题】It’s high time we _______ effective _______to improve your working conditions.
A.
take; means
B.
made; measures
C.
took; measures
D.
do; actions
【单选题】在电路参数和级数相同的条件下，多级双调谐回路放大器与多级单调谐回路放大器的矩形系数相比较 。
A.
双调谐放大器减小的较快
B.
减小速度相同
C.
双调谐放大器减小的较慢
D.
无法比较
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