皮皮学,免费搜题
登录
搜题
【单选题】
下列说法不正确的是哪项()
A.
在黄体期,雌激素协同孕激素对下丘脑有负反馈作用
B.
排卵前,低水平的孕激素可增强雌激素对促性腺激素的正反馈作用
C.
卵泡发育接近成熟时,卵泡分泌的雌激素对下丘脑和垂体产生负反馈作用
D.
月经周期主要受下丘脑-垂体-卵巢轴的神经内分泌调控
E.
除卵巢外,肾上腺是合成甾体激素最重要的器官
拍照语音搜题,微信中搜索"皮皮学"使用
参考答案:
参考解析:
知识点:
.
..
皮皮学刷刷变学霸
举一反三
【多选题】形成水合物的条件Conditions for hydrate formation:()
A.
天然气中含有足够的水分Natural gas contains enough moisture
B.
一定的温度与压力A certain temperature and pressure
C.
气体处于脉动、紊流等激烈扰动之中,并有结晶中心存在。Gas is in the pulsation, turbulence and other violent disturbances, and there is a crystallization center
D.
以上都不对
【多选题】输气管中生成水合物的真实情况The real situation of hydrate formation in gas pipeline:()
A.
气体在管内高速度流动,不可能在某一点生成水合物,而往往在数十米的管段上形成水合物。The gas flows in the tube at a high speed, so it is impossible to form hydrate at a certain point.
B.
形成水合物会改变压降曲线形状。Hydrate formation changes the shape of the pressure drop curve.
C.
生成水合物时伴随有热效应,要放出热量。熔解水合物时,要吸收热量。水合物的熔解热为335KJ/kg,对管线温降曲线有影响。The formation of hydrate is accompanied by a thermal effect, to release heat. When you melt hydrate, you absorb heat. The melting heat of hydrate is 335KJ/kg, which affects the temperature drop curve of pipeline.
D.
此外,还有不少难以考虑周全的因素,如:局部阻力、气流漩涡、结晶中心等,因而有些书上只标明水合物的可能形成区。In addition, there are many difficult to consider factors, such as: local resistance, airflow vortex, crystallization center, and so on, so some books only indicate the possible formation area of hydrate.
【单选题】关于监察工作的原则,错误的说法是( )
A.
国家监察工作严格遵照宪法和法律,以事实为根据,以法律为准绳
B.
在适用法律上一律平等,保障当事人的合法权益
C.
权责对等,严格监督,惩戒与教育相结合,宽严相济
D.
从严,从重
【简答题】Write down the contents from the Dictaion 1.
【单选题】How many syllables in "hydrate"?
A.
4
B.
3
C.
2
D.
1
【简答题】Dictaion.mp3:
【单选题】Many experts __ a low protein, high carbon hydrate diet.
A.
prompt
B.
advocate
C.
inherent
D.
claim
【多选题】What conditions will natural gas more likely to form hydrate?
A.
Higher pressure
B.
Lower pressure
C.
Higher temperature
D.
Lower temperature
【多选题】The unconventional gas often includes gas hydrate and ( ).
A.
t ight gas
B.
s hale gas
C.
c oalbed methane
D.
c ondensate gas
【简答题】Dictaion
相关题目: