局麻药内加入肾上腺素的目的是()。
A.防止麻醉后血压下降
B.防止麻醉后心率减慢
C.防止手术野大出血
D.防止局麻药中毒
E.调节自主神经功能
参考答案:D
Which of the following best describes the underlying principles upon which the Global Investment Performance Standards (GIPS) are based()
A. Fair and consistent application of a global set of regulatory requirements.
B. Fair treatment of entities associated with securities law infractions.
C. Full disclosure and fair representation of performance results.
汽化冷却有两种形式,一种是自然循环,一种是()。
A.强制循环
B.自然循环
C.水循环
D.风循环