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【单选题】
(2018·淄博期末)已知金属钠与两种卤族元素形成的化合物Q、P,它们的晶格能分别为923kJ·mol - 1 、 786kJ·mol - 1 ,下列有关说法中不正确的是 ( )
A.
Q的熔点比P的高
B.
若P是NaCl,则Q一定是NaF
C.
Q中离子核间距比P的小
D.
若P是NaCl,则Q可能是NaBr
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【单选题】One of the main functions of lube.oil is to remove ( ) from oil cooled pistons
A.
power
B.
friction
C.
heat
【判断题】《药品经营许可证》有效期为5年,须继续经营药品的,在届满前3个月换证。()
A.
正确
B.
错误
【判断题】《药品经营许可证》有效期为5年,需继续经营药品的,在届满前3个月换证。( )
A.
正确
B.
错误
【判断题】《药品经营许可证》有效期为5年,须继续经营药品的,在届满前3个月换证。
A.
正确
B.
错误
【单选题】You are on a tanker discharging oil.When all of the oil that the main cargo pumps can handle is pumped out of a tank,the remainder is ______.
A.
Stripped out and pumped directly ashore into the mainline as the remaining cargo tanks are pumped out with the main pumps
B.
Stripped to one tank and then pumped out with the main pumps
C.
Stripped out and pumped directly ashore after all the tanks have been emptied by the main pumps
D.
Gravitated to the centers from the wings and pumped out with the main pumps
【多选题】以下属于干法制粒技术的是
A.
重压制粒
B.
滚压制粒
C.
喷雾干燥制粒
D.
流化床制粒
【单选题】A lube oil sample taken from the main engine lube oil system has dark yellow opaque colorThis is the result of .
A.
water contamination
B.
mixing oils of two widely different viscosities
C.
overheating
D.
aeration
【单选题】The countrys main exports are oil, cars and consumer electronic gadgets, oil ______the most important of these.
A.
has been
B.
is being
C.
is
D.
being
【多选题】难溶强电解质的溶度 积 K sp 与下列哪些因素有 关 ( )
A.
沉淀的 量
B.
溶液的浓 度
C.
电解质的本 质
D.
体系的温 度
E.
溶液的体 积
【多选题】关于感觉和知觉的描述正确的是
A.
感觉是通过某一感觉器官获取某一事物单个属性信息的过程。
B.
感觉反映事物的个别属性。
C.
感觉是知觉的基础,知觉是感觉的深入。
D.
知觉反映事物的整体属性。
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