【单选题】Glucose can be fermented to produce acid in ______ test?
【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】What can we learn about the effects of acid rain on terrestrial plants?
A.
Acid rain destroys the coating on tree leaves and fruits.
B.
Acid rain makes tree leaves and fruits poisonous.
C.
They are as clearly understood as the acid rain's effects on lakes.
D.
Acid rain makes no difference on terrestrial plats.
【判断题】个别资本家不断追求超额剩余价值,最终造成了整个资本家阶级普遍获得超额剩余价值
【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.
【单选题】For bile acid absorption which test is done?