螺旋体引起的疾病有()
A.梅毒
B.回归热
C.钩体病
D.奋森咽颊炎
E.莱姆病
参考答案:A, B, C, D, E
Questions 29 and 30Choose TWO letters, A-E.Which TWO of the following points does the tutor warn student’s research work
Questions 29 and 30
TW
A-E
TWO
运行过程中怎样判断磨煤机内煤量的多少?