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【单选题】
对油脂性基质说法正确的是
A.
凡士林经漂白后可用于眼膏剂基质
B.
液体石蜡具有表面活性及一定的吸水性能
C.
凡士林基质常用于制备乳膏剂
D.
羊毛脂主要成分是胆固醇的棕榈酸酯及游离的胆固醇类
E.
油脂性基质是指烃类一类物质
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【简答题】The Elysee Palace in France enjoys equal popularity in the world with the Buckingham Palace in the United Kingdom, the Kremlin in Russia as well as the White House in the U. S. It is the residence of ...
【单选题】关于手术进行中的无菌原则的叙述,哪项不对
A.
不可在手术人员背后传递器械
B.
手术台平面以下为污染区
C.
术中被肠内容物污染的器械必需冲洗后再用
D.
皮肤切开前及缝合之前均要用 70 %乙醇消毒皮肤一次
【简答题】The fact that the chance of identical twins both developing schizophrenia is higher than that of fraternal twins confirms the influence of______.
【单选题】Traditional Chinese sports are similar to the Western sports _______ both are meant to improve people’s health.
A.
that
B.
in which
C.
in that
D.
不填
【简答题】线性移不变系统是因果系统的充分必要条件是()。
【单选题】线性移不变系统是稳定系统的充分必要条件是()
A.
因果系统
B.
单位抽样响应绝对可和
C.
输入序列有界
D.
输入序列绝对可和
【单选题】线性时不变系统是因果系统的充分必要条件是:
A.
h(n)=1, n<0
B.
h(n)=1, n>0
C.
h(n)=0, n<0
D.
h(n)=0, n>0
【单选题】The blurring of working womens roles refers to the fact that______.
A.
they are both bread winners and housewives
B.
their home is also a place for kicking back
C.
there is often much housework left behind
D.
it is difficult for them to leave their office
【简答题】线性移不变系统为因果系统的充分必要条件是_____。
【判断题】公民科学,是新近随着新技术的发展出现的研究方法
A.
正确
B.
错误
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