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【单选题】
根据国际生化学会委员的规定,酶的一个国际单位是指A.
最适合条件下,每小时生成1mmol产物的酶量
B.
37℃下,每分钟催化生成1µmol产物的酶量
C.
25℃下,其他为最适条件,每分钟催化生成1µmol产物的酶量
D.
30℃下,每小时催化生成1mmol产物的酶量
E.
最适条件下,每分钟催化1µmol底物反应所需的酶量
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举一反三
【多选题】Forecasts based solely on the most recent observation(s) of the variable of interest
A.
are called “naive” forecasts.
B.
are the simplest of all quantitative forecasting methods.
C.
leads to loss of one data point in the forecast series relative to the original series.
D.
are consistent with the “random walk” hypothesis in finance, which states that the optimal forecast of today's stock rate of return is yesterday's actual rate of return.
【判断题】In a pull-based model of SCM systems, production master schedules are based on forecasts of demand for products which under the title Enterprise Systems.
A.
正确
B.
错误
【单选题】In the ________ process, goods are produced based on forecasts and are stored in a warehouse, and sales orders are then fulfilled from inventory.
A.
configure-to-stock
B.
make-to-stock
C.
make-to-order
D.
engineer-to-order
【判断题】In a push-based supply chain, production and distribution decisions are based on long-term forecasts.
A.
正确
B.
错误
【单选题】In the ________ process, raw materials, subcomponents, and accessories are procured based on forecasts, but actual manufacturing does not start until sales orders are received.
A.
order-to-cash
B.
procure-to-pay
C.
make-to-stock
D.
make-to-order
【判断题】In a push-based supply chain, production and distribution decisions are based on short-term forecasts.
A.
正确
B.
错误
【判断题】In a pull-based model of SCM systems, production master schedules are based on forecasts of demand for products.
A.
正确
B.
错误
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