【单选题】What test can be used to detect Bacterial ability of produce an enzyme , tryptophanase to break down the amino acid, \ tryptophan?
【单选题】If it doesn’t rain tomorrow, we will go out for a picnic.
【单选题】If it should rain tomorrow, we ____ at home.
【简答题】If it doesn't rain, we will climb the mountain. 翻译: ____.
【简答题】If it didn't rain, we would have had a much better time during the trip.
【单选题】The acid-test ratio differs from the current ratio in that:
A.
Liabilities are divided by current assets.
B.
Prepaid expenses and inventory are excluded from the calculation of the acid-test ratio.
C.
The acid-test ratio measures profitability and the current ratio does not.
D.
The acid-test ratio excludes short-term investments from the calculation.
E.
The acid-test ratio is a measure of liquidity but the current ratio is not.