对锅炉5%MCR启动旁路疏水门表述正确的是()。A、可加速提高过热器出口蒸汽温度,限

题型:多项选择题

问题:

对锅炉5%MCR启动旁路疏水门表述正确的是()。

A、可加速提高过热器出口蒸汽温度,限制蒸汽压力上升速度;

B、使蒸汽参数较快达到汽机冲转的要求;

C、可减低过热器出口蒸汽温度,限制蒸汽压力上升速度。

考点:锅炉操作工考试循环流化床锅炉运行循环流化床锅炉运行题库
题型:多项选择题
Jack is a high school student. He is seventeen years old. He is in Grade two now. he had a bad stomachache three days ago. He went to see the doctor. The doctor gave him a bottle of medicine. Here are the words on the bottle:
Stomachache medicine
You must shake(摇晃) the bottle before you take it.
You must take it three times a day.
You should take it after meals.
Age                        Dose(剂量)
More than 16                 three teaspoons (药勺)each time
8---15                       two teaspoons each time
5---7                       one teaspoon each time
Notes: the children under 4 years old CANNOT take this medicine. Please put it in a dry and cold place. Take it before Oct.31, 2009.
根据短文内容,选择正确答案。
小题1:Jack should take the medicine __________.
A.before mealsB.after mealsC.before sleepD.after sleep
小题2:Jack should take ______of the medicine a day.
A.1 teaspoonB.4 teaspoonsC.9 teaspoonsD.2 teaspoons
小题3:Jack should ___________ before taking the medicine.
A.eat no foodB.drink no milk
C.shake the bottleD.drink some water
小题4:Children can take the medicine when they’re ______ years old.
A.under 4B.more than 4C.more than 16D.between 8and 15
小题5:Jack _______ the medicine after October 31,2009.
A.has to takeB.has to soldC.can takeD.can’t take
题型:多项选择题

胃痛暴作,畏寒喜暖,脘腹得温则痛减,口和不渴,喜热饮,舌苔薄白,脉弦紧。治法是

A.健脾化湿
B.温中健脾
C.温中补肾
D.散寒止痛
E.散寒除湿

题型:多项选择题

根据接触毒物的时间长短,可将一般毒性作用分为()

A.长期毒性和短期毒性

B.急性毒性、亚慢性毒性和慢性毒性

C.急性毒性和慢性毒性

D.长期毒性、较长期毒性和短期毒性

E.蓄积毒性和非蓄积毒性

题型:多项选择题

液体压强计算公式:__________,(ρ是液体密度,单位是_______;h是深度,指液体内部某点到_________________距离。)

题型:多项选择题

系机车司机室是电力机车司机工作的场所,不属室内设备的作用的为()。

A、操纵机车

B、反映机车运行速度

C、方便生活

D、前方瞭望

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