[多项选择]蒸压灰砂砖（GB 11945—1999）标准中根据蒸压灰砂砖的颜色分为（）。
A. 红色
B. 灰色
C. 彩色
D. 本色

Text 2
Owing to the insufficient gas supply in the United States, the gas price has dramatically risen. The new gas price reality and the policy decisions it may trigger will undoubtedly lead to critical financial implications for some individuals or companies, but the situation can hardly be termed a "national crisis" or even a "shortage". What is true is that buyers--particularly those in the chemical industry and in independent power generation -will not be able to acquire the quantity of gas they wish at the prices they wish to pay, or even at prices that will allow them to remain competitive in their markets, particularly during peak demand seasons.
Over the next year or two, the result will be higher, and more volatile prices, to be sure, but there are market-driven adjustment mechanisms even in the short term, e.g., more electric power from coal and oil, reduced production of domestic chemicals, and a commensurate substitution of
A. The financial situation is rather critical owing to the high gas prices.
B. The economic situation is not bad enough to trigger a recession.
C. Demand adjustments are the same in all the states of America.
D. The U. S. need to reconsider its policy concerning environment and economic growth.