急性蜂窝织炎常见致病菌()。
A.大肠杆菌
B.乙型溶血性链球菌
C.金黄色葡萄球菌
D.梭状芽孢杆菌
E.金黄色葡萄球菌及乙型溶血性链球菌
参考答案:B
美国农业现代化侧重高度机械化,能源消耗太多,大量使用化肥、农药、除草剂、杀虫剂带来哪些问题?
________________________________________________________________________________
Mr. Green is very happy because he is satisfied with his students’ work today.
A.is moved by
B.is good for
C.is fond of
D.is pleased with