举一反三
- Which of the following ( ) is not helpful for the protection of scarce resources A: Material substitute B: Increment of material uses C: Selling services instead of products D: Using eco-materials
- A plastic is a synthetic material which can be molded into any desired shape and which uses an organic substance as a binder.
- Fruit tree radiation mutation breeding often uses pollen as the test material, because it is not easy to produce chimeras.
- The total annual cost is the sum of annual material cost, annual order cost, and annual holding cost, and is given as TC = CD + (D/Q)S + (Q/2)hC.
- You may use tapes as ________material to teach English. A: oral B: aural C: visual D: annual
内容
- 0
“A poor life this if, full of care,We have no time to stand and stare” here“poor” indicates material poverty.
- 1
The government concluded that lowering the population growth rate would enhancethe _____ of the nation. A: popularity B: density C: intensity D: prosperity
- 2
An opaque material is （） A: a material that can be seen through B: a translucent(半透明的) material C: a material that can not be seen through D: a lucent material
- 3
Which of the following<br/>methods are helpful in the diagnosis of lung cancer? () A: uses CT scan <br/>B .uses PET-CT inspection B: uses ESD method C: uses MRI method D: uses PET-CT inspection
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The cost of materials for product A are as follows. Material W: $2,250 Material X: $3,000 Material Y: $3,600 Material Z: $150 If the material proportions were displayed on a pie chart, how many degrees would material Y represent?