【单选题】Notices to Mariners are published .
【判断题】高血压诊断标准为,至少2次非同日血压,收缩压>140mmHg和或舒张压>90 mmHg。
【简答题】Is this syllogism valid or invalid?
All published authors are writers.
Some writers are professors.
Therefore, some professors are published authors.A. Valid B. Invalid
【单选题】Navigational Warnings are published according to
D.
all area over the world
【单选题】Is this syllogism valid or invalid? All published authors are writers. Some writers are professors. Therefore, some professors are published authors.