【单选题】在卖出合约后,如果价格上升则进一步卖出合约,以提高平均卖出价格,一旦价格回落,可以在较高价格上买入止亏盈利,这称为平均买低。( )
【单选题】Some children (want to) challenge (themselves) by learning a language different from (which) their parents speak (at home).
【简答题】DNA is the whole “map” of the human body. It is something that all human have, and it tells the body what to do. DNA is the reason that we look like our parents, because we get some of their DNA to ma...
【判断题】同一条需求曲线上不同点的需求价格弹性系数大小相同。
【多选题】口腔颌面及颈部手术后,可因肌松弛、舌后坠、咽或颈部肿胀、血肿压迫而致上呼吸道梗阻。主要预防措施有()
E.
术后组织肿胀可持续3天,在此期间均应警惕气道梗阻的危险
【单选题】In the author's opinion, ______.
A.
the human body can't be compared to a car
B.
the older a person is, the more care he needs
C.
too much emphasis has been put on old people's values
D.
it is easy to provide spare parts for old people
【单选题】关于药品采购管理目标和药品采购原则,说法正确的是
A.
药品采购管理应遵循的基本原则包括质量第一原则、有效性原则、经济性原则和保障性原则
B.
药品采购管理是药品生产、经营、科研所需药品的供应渠道、采购程序、采购方式、采购计划及采购文件的管理
C.
药品采购管理目标是依法、规范、按需、适时地购进质量优良、价格合理的药品,保证药品供应
D.
药品采购管理应遵循的基本原则包括质量第一原则、安全性原则、经济性原则和有效性原则
E.
采购前掌握医院用药动态,根据上一年同期药品消耗,合理确定库存量,制定采购计划
【简答题】在卖出合约后,如果价格上升则进一步卖出合约,以提髙平均卖出价格,一旦价格回落,可以在较高价格上买入止亏盈利,这称为平均买低。()
【单选题】What made some people different from others according to Confucius?
【单选题】对于n个物品,背包容量为W的背包问题,利用动态规划方法求解,其时间复杂度是:()