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【多选题】
关于流体阻力产生的原因,以下正确的是A.
黏性是流动性的反面,流体黏性越大,其流动性越小
B.
流体流动时产生内摩擦力的特性称为黏性
C.
牛顿黏性定律表明,流体层间的内摩擦力或剪应力与法向速度梯度成反比
D.
黏性是流体产生流动阻力的根本原因
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【单选题】It could be inferred from the passage that in the author's country the European model of professional training is______.
A.
dependent upon the starting age of candidates
B.
worth trying in various social sections
C.
of little practical value
D.
attractive to ever kind of professional
【单选题】If you sleep on curled up ( 蜷缩 ), you are probably a very nervous person. You have a low opinion of yourself and often protect yourself from being hurt, so you are very defensive. You’re shy and you d...
A.
易怒的
B.
攻击性的
C.
外向的
D.
有戒心的
【单选题】根据基础资产的不同,金融衍生工具可以分为股票衍生工.具、利率衍生工具、货币或汇率衍生工具。其中不属于股票衍生工具的是
A.
股票价格指数期货
B.
可转换债券
C.
债券期货
D.
与股权相关的债券
【简答题】下列有关液体制剂的叙述,正确的是()A.吸收快,作用迅速B.分剂量容易C.流动性大,便于腔道给药D.易控制浓度以减小刺激性A. 1 B. 1 C. 1 D. 1
【判断题】In China, being modest is very important and considered to be polite, especially when you are praised.
A.
正确
B.
错误
【单选题】It could be inferred from the passage that in the author’s country the European model of professional training is _____
A.
dependent upon the starting age of candidates
B.
worth trying in various social sections
C.
of little practical value
D.
attractive to every kind of professional
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