You may have gotten into phishing if
A. you are unaware of the dangers online.
B. you get a mail claims to be from a bank.
C. you are asked to give information about your account password.
D. you are asked to click on a link and visit an unfamiliar site.
男性，17岁。上腹部撞伤7小时，腹部剧烈疼痛伴恶心、呕吐2小时查体：神志清。血压75／45mmHg。全腹压痛，佯腹膜刺激征，肝区叩痛()，移动性浊音()。
首先应考虑的检查是
A. 选择性腹腔动脉造影
B超
C. 诊断性腹腔穿刺
D. CT
E. X线腹平片
男，33岁。2周前尹始出现牙痛，牙龈肿胀，20小时前突然出现左颈部肿胀、剧痛，伴高热。查体：左颈部肿胀，张力大，压痛，无结节。
诊断首先考虑是
A. 急性化脓性淋巴结炎
B. 口底化脓性蜂窝织炎
C. 项痈
D. 淋巴结结核
E. 颈深部化脓性蜂窝织炎
According to the news, the American Airlines claims that
A. the defibrillator functions normally.
B. the oxygen bottles are more than enough.
C. they are short of flight attendants.
D. they"ve done the regular pre-flight check.
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