【单选题】【科学史】自20世纪30年代以来,科学史研究领域出现了一个新的研究方向,即( ),也称为科学外史,其开山鼻祖是赫森。赫森在《牛顿原理的社会经济基础》中没有讨论万有引力和哥白尼的日心学说、伽利略惯性定律和开普勒行星运行定律之间的继承关系,而是重点讨论了十七世国的战争、贸易、运输的需要对牛顿研究工作的推动作用。
【判断题】电弧形成性过程中游离和去游离子的作用始终是平衡的。( )
【简答题】植物组培实验室主要包括 ( 、 、 ) 等部分
【单选题】右侧颞下颌关节开口初发出单音清脆弹响,开口型先偏向右侧,弹响发生后又回到中线,关节检查发现关节区压痛,张口度为3.5cm,X线见关节后间隙变窄,前间隙变宽,那么此患者的诊断应该是
【单选题】右侧颞下颌关节开口初发出单音清脆弹响,开口型先偏向右侧,弹响发生后又回到中线。关节检查关节区压痛.张口度为3.5cm。X线见关节后间隙变窄,前间隙变宽。此患者的诊断应该是
【单选题】In carrying out your budget, you need ______.
A.
to have the ability to control yourself
B.
to ask your family members for advice
C.
to cut it down as much as possible
D.
to take care not to buy expensive things
【单选题】If your budget supports a $ 22,000 price-tag, you will be able to buy a convertible or a sports car priced at $ ,00
【单选题】In an indifference curve/budget line diagram, at your consumer equilibrium, that is, your best affordable point, which of the following statements is correct?
A.
Any movement upward or downward on your budget line will move you to a less preferred point.
B.
Any movement upward or downward on your indifference curve will move you to a less preferred point.
C.
Your marginal rate of substitution is greater than the magnitude of the budget line by as much as possible.
D.
All of the above are correct.
【简答题】基本的植物组织培养实验室应该包括: 、 和培养室三大主要部分。
【单选题】右侧颞下颌关节开口初发出单音清脆弹响,开口型先偏向右侧,弹响发生后又回到中线。关节检查发现关节区压痛,张口度为3.5cm。X线检查见关节后间隙变窄,前间隙变宽。那么此患者的诊断应该是