／l／ in‘play’is devoiced.（)

The concentration of Ca in a sample of sea water is determined using a

Ca ion-selective electrode and a one-point standard addition. A 10. 00 mL. sample is trans-erred to a 100 mL volumetric flask and diluted to volume. A 50. 00 mL aliquot of sample is placed in a beaker with the Ca ion-selective electrode and a reference electrode,and the potential is measured a s-0.052 90 V. A 1, 00 mL aliquot of a 5. 00X10^-2mol·L^-1standard solution of Ca²⁺is added,and a potential of -0.044 17V is measured. What is the concentration of Ca in the sample of sea water?

China’s economy is developing very quickly, and has brought with it a culture of consumption more prevalent (流行) with each passing day.At the same time, it has brought into being an educated group of young people who enjoy capitalist consumption way(资本主义消费模式).They’re used to spending money as soon as they get it every month, and so are called “the moon-light group”.This word came into being during the 1990s, to make fun of those born into wealth, who have received a high education, and who appreciate fast food culture.

A、neither the level of output nor the level of prices

B、the level of output, but not in the level of prices.

C、the level of prices, but not in the level of output

D、the level of output and in the level of prices.

A、be sold well

B、be saleable

C、sell out

D、be sale

A、may threaten Chinese culture

B、means that the Chinese blindly follow the West in every way

C、causes Chinese festivals to lose their charm

D、is a good example of Western decadence

A、Misinterpreting.

B、Overlooking.

C、Overthinking.

D、Misspelling.