细菌的侵袭力是由_______和_______构成。
参考答案:菌体表面结构;侵袭性酶
I made coat ________ my own hands. It was made ________ hand not with a machine.
A.in; in
B.in; with
C.with; by
D.with; with
所谓的高温容器是指工作温度在材料蠕变温度以上。