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【单选题】
物质 A 在薄层板上从样品原点迁移 7.6cm ,样品原点至溶液前沿 17.2cm ,计算化合物 A 的 R f 值为
A.
0.32
B.
0.49
C.
5.91
D.
D . 6.72
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【多选题】Which two of the following are implied rights of preference shareholders?
A.
The right to receive a dividend is cumulative.
B.
If the company goes into liquidation, preference shareholders are entitled to claim all arrears of dividend from the liquidator.
C.
As well as rights to their preference dividends, preference shareholders can share equally in dividends payable to ordinary shareholders.
D.
Preference shareholders have equal voting rights to ordinary shareholders.
【简答题】Bill likes hamburgers, eggs and oranges for breakfast. For lunch, he eats French fries, chicken and salad. For dessert(甜点),he likes ice-cream. He doesn’t like pears or bananas for dinner. He likes tom...
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A.
1%
B.
2%
C.
3%
D.
5%
【判断题】水文自动测报系统的设备主要有传感器、通讯设备、遥测终端机、中继机、前置通讯控制机(简称前置机)和辅助设备。
A.
正确
B.
错误
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【单选题】迟交票款、运费、杂费时从应收该项费用之次日起至付款日止,每迟交一日,按迟交总额的()核收运输费用迟交金。
A.
1%
B.
2%
C.
3%
D.
4%
【单选题】计算机领域,通常用英文单词“BYTE”来表示()。
A.
A:位
B.
B:字节
C.
C:字符
D.
D:字
【多选题】锅炉设备的主要控制系统有()
A.
给水控制系统
B.
过热蒸汽控制系统
C.
前馈控制系统
D.
燃烧控制系统
【简答题】Bill likes hamburgers, eggs and oranges for breakfast. For lunch, he eats French fries, chicken and salad. For dessert(甜点), he likes ice cream. He doesn’t like pears or bananas for dinner. He likes to...
【判断题】旅游电子商务实质还是商务,与技术没有太大关系。
A.
正确
B.
错误
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