【单选题】男性病人导尿时,使阴茎与腹壁成60°角的目的是
【简答题】药品出库的“四先出”原则是: 、 、 、
【单选题】Our country was founded on the lofty principles of freedom and justice for all. Our lofty principles ought to be ______.
【单选题】We do not hesitate() our lives for our country, let alone suffer some hardships.