全补偿链形悬挂中,当接触线弛度误差不足规定安全值者按()掌握。
A、5mm
B、10mm
C、15mm
D、20mm
参考答案:C
There, ______ Mrs. Tailor, stretching out to gather her precious eggs laid by her hen.
A.standing on a wooden box was
B.was standing on a wooden box
C.on a wooden box was standing
D.was on a wooden box standing
函数y=x|x|+px,x∈R是( )
A.偶函数
B.奇函数
C.不具有奇偶函数
D.与p有关