发酵技术与我们的生活息息相关.下列食品中都是利用乳酸菌发酵的是( )
A.泡菜、酸奶
B.面包、米酒
C.泡菜、米酒
D.腐乳、酸奶
答案:A
As more and more cars are produced and used, so the _____ from their exhaust-pipes contains an even larger volume of poisonous gas.
A.exposure
B.distribution
C.expansion
D.emission