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【简答题】
解释旅游管理信息系统的几个结构视图?你认为还有其他视图吗?
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举一反三
【简答题】Gross Weight=G.W [单选题] *
【单选题】The following statements regarding gross profit are true except:
A.
Gross profit is also called gross margin.
B.
Gross profit less other operating expenses equals income from operations.
C.
Gross profit is not calculated on the multiple-step income statement.
D.
Gross profit must cover all operating expenses to yield a return for the owner of the business.
E.
Gross profit equals net sales less cost of goods sold.
【单选题】关于高效液相色谱法叙述错误的是()
A.
C18是最常用的非极性键合相，用于反相色谱
B.
C8是最常用的极性键合相，用于正相色谱
C.
氨基和氰基硅烷键合相一般用于正相色谱
D.
流动相一般按一定比例混合而成
E.
最常用的检测器为紫外检测器
【单选题】The gross profit rate is calculated as:
A.
cost of goods sold divided by net sales revenue.
B.
net sales revenue minus gross profit on sales.
C.
net sales revenue minus cost of goods sold.
D.
gross profit divided by net sales revenue.
【单选题】The following statements regarding gross profit are true except:
A.
Gross profit less other operating expenses equals income from operations.
B.
Gross profit is not calculated on the multiple-step income statement.
C.
Gross profit equals net sales less cost of goods sold.
D.
Gross profit is also called gross margin.
E.
Gross profit must cover all operating expenses to yield a return for the owner of the business.
【单选题】关于高效液相色谱法的叙述错误的是()
A.
十八烷基硅烷键合硅胶(C18)为最常用的非极性键合相,用于反相色谱
B.
辛基硅烷键合硅胶(C8)为最常用的极性键合相,用于正相色谱
C.
氨基和氰基硅烷键合相一般用于正相色谱法
D.
流动相一般按一定的比例混合而成
E.
最常用的检测器为紫外检测器
【单选题】The gross profit percentage:
A.
is markup stated as a percentage of cost.
B.
is also known as the gross margin percentage.
C.
will increase if a company is experiencing financial difficulty.
D.
fluctuates significantly for most companies from year to year.
【单选题】关于高效液相色谱法叙述错误的是()
A.
C18是最常用的非极性键合相，用于反相色谱
B.
C8是最常用的极性键合相，用于正相色谱
C.
流动相一般按一定比例混合而成
D.
最常用的检测器为紫外检测器
【单选题】关于高效液相色谱法的叙述错误的是()。
A.
十八基硅蛇键合胶(C 18 )为最常用的非极性键合和，用于反相色谱
B.
辛基烷键合建(C 8 )为最常用的极性键合和，用于正相色谱
C.
氨基和氰基硅烷键合相一般用于正相色谱法
D.
流动相一般接一定的比例混合而成E最常用的检测器为紫外检测器
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