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【简答题】
Every new parent knows, or learns pretty quickly, that rocking can calm [Q1] ____________________________ when it's time to take a nap. But the benefits of gentle motion may extend past the swaddling stage. Because two new studies show that rocking also helps grown-ups, [Q2] _________________________________, get a good night's sleep. The two research efforts are in the journal Current Biology . What should be no surprise is that movement can be soothing. Think of how many times you've fallen asleep on a train. But can motion really [Q3] _________________, and make for a deeper sleep? To find out, researchers invited 18 healthy volunteers for a sleepover. Aurore Perrault, a sleep researcher at the University of Geneva in Switzerland. "And what we find is actually compared to a stationary night, a whole night of rocking sleep has a beneficial impact. Not only on sleep initiation, which means they fall asleep faster, but also on [Q4] ______________________________, as we saw that they have less micro-awakening during the night." Subjects who rocked also did better on a [Q5] _______________ the next morning than did the stiller sleepers. In the second study, Konstantinos Kompotis, a [Q6] _______________________ at the University of Lausanne, rocked a rack of rodents. "Whether rocking affects sleep in species other than human was never before discussed. So the main questions for our study were [Q7] __________________________________________ and what is the underlying mechanism?" Kompotis placed the mouse cages on a platform that moved from side to side. And though mice were rocked four times faster than their human counterparts - a frequency of one back-and-forth per second, or 1 Hertz, worked best - the results were [Q8] _______________. Additional studies could allow the researchers to identify a new target for treating [Q9] _____________________________, including insomnia. Until then, you might think about adding [Q10] _________________________ to your nighttime routine.7
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【单选题】当物体处于临界平衡状态时,静摩擦力FS的大小( )。
A.
与物体的重量成正比;
B.
与物体的重力在支承面的法线方向的大小成正比;
C.
与相互接触物体之间的正压力大小成正比;
D.
由力系平衡方程来确定。
【单选题】C语言中,决定函数返回值类型的是[ ]。
A.
return语句中的表达式类型
B.
调用该函数的主调函数的类型
C.
调用函数时临时决定
D.
定义函数时所指定的函数类型
【单选题】当物体处于临界平衡状态时,静摩擦力Fs的大小
A.
与相互接触物体之间的正压力大小成正比
B.
与物体的质量成正比
C.
与物体的重力在支撑面的法线方向的大小成正比
D.
由力系的平衡方程确定
【判断题】.“出声——引腹——归韵”是“咬字吐字”的过程,“出声”即声母的发声,它是“咬字吐字”的第一步,练就了正确的出声,才能实现“字正”,结合韵母练习,才能更有效地实现“字正腔圆”。
A.
正确
B.
错误
【单选题】当物体处于临界平衡状态时,静摩擦力 Fs的大小()
A.
. 与物体的质量成正比;
B.
与 物体的重力在支承面的法线方向的大小成正比;
C.
与相互接触的物体之间的正压力大小成正比;
D.
有力系的平衡方程来确定
【单选题】C语言中决定函数返回值的类型的是( )。
A.
return语句中的表达式类型
B.
调用函数的主调函数类型
C.
调用函数时临时
D.
定义函数时所指定的函数类型
【简答题】Notieren Sie bitte, welche Wörter in Bezug auf Kleidung im Video ausgesprochen werden.
【单选题】当物体处于临界平衡状态时,静摩擦力Fs的大小()
A.
与物体的质量成正比
B.
与物体的重力在支承面的法线方向的大小成正比
C.
与相互接触物体之间的正压力大小成正比
D.
由力系的平衡方程来确定
【单选题】明矾的化学成分是()
A.
硫磺和硫酸铜
B.
石灰水和硫酸铜
C.
石灰和硫磺
D.
石灰水和硫磺
【单选题】具有快速、经济、简便易行特点的商品检验方法为( )
A.
化学检验法
B.
感官检验法
C.
物理检验法
D.
生物学检验法
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