患者,男,26岁,阵发性心悸、胸痛半年。体查:于胸骨左缘第3、4肋间闻及舒张期吹风样杂音。该患者突然出现腹痛、呕吐、血粪。首先应考虑的诊断为
A. 急性肠梗阻
B. 亚急性感染性心内膜炎、肠系膜动脉栓塞
C. 急性胃炎
D. 急性肠炎
E. 急性胃穿孔
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You should ______ the wheels of your bicycle once a month.
A. fabricate
B. confiscate
C. lubricate
D. syndicate
A survey by the Ministry 9f Information Industry indicates that China is in ______ shortage of online game talent.
A. eccentric
B. acute
C. sensible
D. sensitive
The purpose of the survey was to ______ the inspectors with local conditions.
A. inform
B. notify
C. instruct
D. acquaint
既可对已发生的,又可对尚未发生或正在发生的经济活动进行核算的是()。
A. 会计核算
B. 利润核算
C. 统计核算
D. 业务核算