蜗轮轮齿弯曲疲劳强度计算的目的是防止轮齿过早发生______失效。
A.塑性变形
B.齿面压溃
C.疲劳折断
D.疲劳点蚀
参考答案:C
We all like ________animal. Because they are ______ interesting.
A.kind of; kind of
B.this kind of; kind of
C.kind of; kind of
D.this kind of; this kind of
统计法律责任是指行为人对其违反统计法律规范的行为所应承担的惩罚性法律后果。()