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【单选题】
食品含水量随干燥时间而变化的关系曲线是-----。A.
干燥曲线
B.
干燥速率曲线
C.
干燥时间曲线
D.
干燥质量曲线
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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
【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
【简答题】At a refinery the crude oil is ______ into its various parts.
【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
【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
【简答题】超临界流体萃取典型的工艺流程有 工艺, 工艺 和等温等压吸附工艺
【简答题】小题1:He said he would________(推荐) me to Professor Wang as his student. 小题2:I don’t understand why he refused to________(承认) that he had been defeated. 小题3:Our country is ________(丰富的；充裕的) in natural re...
【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
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