硫化氢对金属的腐蚀,最厉害是在()范围。
A、-5℃~90℃
B、0℃~90℃
C、-5℃~70℃
参考答案:A
The student _____ from the training so much that he was _____ the first prize in the event.
[ ]
A. benefited;benefited
B. awarded;awarded
C. awarded;benefited
D. benefited;awarded
下列哪个部件跟发动机的起动系统无关().
A.DEU(显示电子组件)
B.EEC
C.驾驶舱内的起动电门
D.EAU(发动机附属组件)