真菌门包括四个亚门分别是()
A、芽孢菌亚门
B、接合菌亚门
C、子囊菌亚门
D、担子菌亚门
E、半知菌亚门
参考答案:B, C, D, E
—Are you pleased with what he has done?
—It couldn’t be____. Why didn’t he put more effort into his work?
A.any worse
B.much better
C.so bad
D.the best
当脱碳塔故障阴床进水除二氧化碳效果降低时对阴床的正常运行水质和周期制水量有什么影响?