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【单选题】
正常覆合为上切牙切缘盖过下切牙唇面的垂直距离:
A.
3mm
B.
4mm
C.
5mm
D.
颈1/3
E.
切1/3
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知识点：
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举一反三
【单选题】Every（）shall be fitted with a cargo tank cleaning system using crude oil washing.
A.
existing crude oil tanker of 20000 tons deadweight and under
B.
new crude oil tanker of 20000 tons deadweight and under
C.
existing crude oil tanker of 20000 tons deadweight and above
D.
new crude oil tanker of 20000 tons deadweight and above
查看完整题目与答案
【多选题】超临界流体萃取的优点有:
A.
提取物一般无溶剂残留
B.
适用于对热不稳定成分的提取
C.
对水溶性成分溶解度强
D.
提取速度快、收率高
E.
工艺流程简单，操作方便，成本低
查看完整题目与答案
【多选题】超临界流体萃取的变压分离工艺流程有两种具体的实现方式，分别是（）。
A.
变温变压
B.
萃取介质无相变
C.
萃取介质有相变
D.
吸附分离
查看完整题目与答案
【单选题】The port State control officer will ensure that（）is performed by all crude carriers either required to have a crude oil washing system or where the owner or operator chooses to install a crude oil was...
A.
cargo loading operations
B.
cargo unloading operations
C.
cargo control operations in the transport
D.
crude oil washing
查看完整题目与答案
【简答题】What is the current price of crude-oil as mentioned in the passage?
查看完整题目与答案
【多选题】超临界流体萃取的变压分离工艺中，萃取介质有相变的流程的特点阐述例题的是（）。
A.
必须采用功率很大的二氧化碳压缩机
B.
先提供较小的压力只要使二氧化碳气体液化即可，接着靠液压泵来进一步提高压力
C.
通过控制温度使高压液体气化，再将所得高压气体送入萃取釜
D.
该流程中气体的压力较难控制，过程不及无相变的稳定，操作不及无相变的方便
查看完整题目与答案
【单选题】In the case of new crude oil tankers，the additional ballast permitted shall be carried in cargo tanks only if such tanks have been ______ before departure from an oil unloading port or terminal.
A.
inerted
B.
crude oil washed
C.
diluted
D.
cleaned
查看完整题目与答案
【单选题】According to the passage,all the following is true EXCEPT_____.
A.
crude oil is found below land and water
B.
crude oil is always found a few hundred feet below the surface
C.
pumping and pressure force crude oil to the surface
D.
a variety of petroleum products is obtained from crude oil
查看完整题目与答案
【单选题】The products of distillation of crude oil are .
A.
various chemical pure substances
B.
various fractions with narrower boiling ranges than crude oil, which undergo further processing according to their different properties.
C.
commercial available fuels
查看完整题目与答案
【多选题】超临界流体萃取法的有点有()
A.
提取物一般无有机溶剂残留。
B.
适用于对热不稳定成分的提取。
C.
对水溶性成分溶解力强。
D.
提取速度快、收率高。
E.
工艺流程简单，操作方便，成本低。
查看完整题目与答案
相关题目：
【单选题】Every（）shall be fitted with a cargo tank cleaning system using crude oil washing.
A.
existing crude oil tanker of 20000 tons deadweight and under
B.
new crude oil tanker of 20000 tons deadweight and under
C.
existing crude oil tanker of 20000 tons deadweight and above
D.
new crude oil tanker of 20000 tons deadweight and above
查看完整题目与答案
【多选题】超临界流体萃取的优点有:
A.
提取物一般无溶剂残留
B.
适用于对热不稳定成分的提取
C.
对水溶性成分溶解度强
D.
提取速度快、收率高
E.
工艺流程简单，操作方便，成本低
查看完整题目与答案
【多选题】超临界流体萃取的变压分离工艺流程有两种具体的实现方式，分别是（）。
A.
变温变压
B.
萃取介质无相变
C.
萃取介质有相变
D.
吸附分离
查看完整题目与答案
【单选题】The port State control officer will ensure that（）is performed by all crude carriers either required to have a crude oil washing system or where the owner or operator chooses to install a crude oil was...
A.
cargo loading operations
B.
cargo unloading operations
C.
cargo control operations in the transport
D.
crude oil washing
查看完整题目与答案
【简答题】What is the current price of crude-oil as mentioned in the passage?
查看完整题目与答案
【多选题】超临界流体萃取的变压分离工艺中，萃取介质有相变的流程的特点阐述例题的是（）。
A.
必须采用功率很大的二氧化碳压缩机
B.
先提供较小的压力只要使二氧化碳气体液化即可，接着靠液压泵来进一步提高压力
C.
通过控制温度使高压液体气化，再将所得高压气体送入萃取釜
D.
该流程中气体的压力较难控制，过程不及无相变的稳定，操作不及无相变的方便
查看完整题目与答案
【单选题】In the case of new crude oil tankers，the additional ballast permitted shall be carried in cargo tanks only if such tanks have been ______ before departure from an oil unloading port or terminal.
A.
inerted
B.
crude oil washed
C.
diluted
D.
cleaned
查看完整题目与答案
【单选题】According to the passage,all the following is true EXCEPT_____.
A.
crude oil is found below land and water
B.
crude oil is always found a few hundred feet below the surface
C.
pumping and pressure force crude oil to the surface
D.
a variety of petroleum products is obtained from crude oil
查看完整题目与答案
【单选题】The products of distillation of crude oil are .
A.
various chemical pure substances
B.
various fractions with narrower boiling ranges than crude oil, which undergo further processing according to their different properties.
C.
commercial available fuels
查看完整题目与答案
【多选题】超临界流体萃取法的有点有()
A.
提取物一般无有机溶剂残留。
B.
适用于对热不稳定成分的提取。
C.
对水溶性成分溶解力强。
D.
提取速度快、收率高。
E.
工艺流程简单，操作方便，成本低。
查看完整题目与答案